Throttle cable question.

[Cheapsunglasses]

Y'all 're nuts....

It’s all part of the fun. You get good answers that help, and then you get smart asses posting funny stuff that helps too.

​

 

[RJRENTON]

Hopefully this is the right place for this. I have a 68 GTX 440. With an AFB, or an AVS my throttle cable works fine. But I have purchased an Edelbrock AVS2, and now my cable is just a tad too short. Does anyone have an idea of what’s going on? Any help would be greatly appreciate!

Just my opinion......that is quite a sandwich of spacers and gaskets under the carb...do you really think all that stuff is necesssry? The additional height changes the cable pull angle which usually reduces the travel and short throttle opening. Several years ago, I thought that I had a fuel percolation problem with a Holley R-3310-1 Model 4150 on a Edelbrock Torker II and 440 with a open heat riser valve, using a similar sandwich and GM gasket with a aluminum heat shield (from an 425 HP L-88 engine and Holley carb).......the result was a broken throttle body casting, even though, I had uniformly tightened the mounting hardware using an inch-pound torque wrench......just a word of caution....be careful with the mounting hardware torque.
BOB RENTON

 

[Cheapsunglasses]

Just my opinion......that is quite a sandwich of spacers and gaskets under the carb...do you really think all that stuff is necesssry? The additional height changes the cable pull angle which usually reduces the travel and short throttle opening. Several years ago, I thought that I had a fuel percolation problem with a Holley R-3310-1 Model 4150 on a Edelbrock Torker II and 440 with a open heat riser valve, using a similar sandwich and GM gasket with a aluminum heat shield (from an 425 HP L-88 engine and Holley carb).......the result was a broken throttle body casting, even though, I had uniformly tightened the mounting hardware using an inch-pound torque wrench......just a word of caution....be careful with the mounting hardware torque.
BOB RENTON

If I didn’t think it’s necessary, would I put it on there?

 

[moparedtn]

Whether using Edelbrock or Holley, the appropriate Mopar adapter is always prudent;
heck, I've had the same one work on either aftermarket carb sometimes!
I've also run a spacer under whatever carb I'm using on mine for a long time now, usually a 1/2" one
to avoid so much percolating of fuel with the advent of "modern" (read: crap) gas.

Of course, the cable is also adjustable at the bracket mount:

 

[Lefty71]

Y'all 're nuts....

I feel like only the geezers here will even know who Magoo even is??

 

[Cheapsunglasses]

I feel like only the geezers here will even know who Magoo even is??

I know Mr Magoo, funny show

 

[1STMP]

I know Mr Magoo, funny show

"Oh Magoo! You've done it again!"
Wading past the dementia.

 

[RJRENTON]

If I didn’t think it’s necessary, would I put it on there?

NO.....probably because a "buddy" said that's what you need.....perhaps, if you used real AVS carb it would not be required or necessary as the OEM carb was not susceptible to percolation.....even on an iron manifold.
BOB RENTON

 

[Cheapsunglasses]

NO.....probably because a "buddy" said that's what you need.....perhaps, if you used real AVS carb it would not be required or necessary as the OEM carb was not susceptible to percolation.....even on an iron manifold.
BOB RENTON

You do this crap on everything I post. You come in with your I’m better then everyone bs, and act like I’m a complete idiot.

 

[gtxrt]

NO.....probably because a "buddy" said that's what you need.....perhaps, if you used real AVS carb it would not be required or necessary as the OEM carb was not susceptible to percolation.....even on an iron manifold.
BOB RENTON

could someone clear up 2-points. one is what is the difference between a oem carb and a edelbrock carb that would make the fuel hotter. and 2 i always thought that iron intake can tolerate the heat better than an aluminium manifold.

 

[Cranky]

Y'all 're nuts....

 

[Cranky]

could someone clear up 2-points. one is what is the difference between a oem carb and a edelbrock carb that would make the fuel hotter. and 2 i always thought that iron intake can tolerate the heat better than an aluminium manifold.

Aluminum dissipates heat faster but both will eventually heat up to operating temps and won't vary much if at all from each other. And yeah, I would like to know why an OEM carb could handle the heat better than the Eddy carb too and with that said, I've never experienced percolation with any carb. Now I have had fuel vaporize once the engine was shut off because of under hood heat.....is that what Bob is talking about?

 

[Cheapsunglasses]

Aluminum dissipates heat faster but both will eventually heat up to operating temps and won't vary much if at all from each other. And yeah, I would like to know why an OEM carb could handle the heat better than the Eddy carb too and with that said, I've never experienced percolation with any carb. Now I have had fuel vaporize once the engine was shut off because of under hood heat.....is that what Bob is talking about?

Idk what he’s talking about, he’s just doing what he does on everything I post. It’s getting pretty ridiculous.

 

[Cheapsunglasses]

could someone clear up 2-points. one is what is the difference between a oem carb and a edelbrock carb that would make the fuel hotter. and 2 i always thought that iron intake can tolerate the heat better than an aluminium manifold.

Well I can’t answer the first question, I believe it’s just him being him.

 

[Big Bad Dad]

Well I can’t answer the first question, I believe it’s just him being him.

Well, I don't want to stir up the bowl on a crap show, but I will ask the question. Why did you think it was necessary to put the spacer on your manifold? Seriously, not being a wise ***, but asking the question.

 

[Cheapsunglasses]

Well, I don't want to stir up the bowl on a crap show, but I will ask the question. Why did you think it was necessary to put the spacer on your manifold? Seriously, not being a wise ***, but asking the question.

Keep the fuel from boiling and I’ve heard it helps fuel distribution, so I’m trying it out. If it it doesn’t, not to sound like too much of a smart ***, but guess what? It can be removed!

 

[Big Bad Dad]

OK, Just curious. I have been running AVS and AFB carbs, as well as one Edelbrock since the 1970s. I have never had a problem with fuel boiling.

 

[Cranky]

could someone clear up 2-points. one is what is the difference between a oem carb and a edelbrock carb that would make the fuel hotter. and 2 i always thought that iron intake can tolerate the heat better than an aluminium manifold.

Depends on the alloy of the aluminum. It took awhile but the OEM's got a handle on building blocks and heads and just about everything else out of aluminum for engines some time back. Cast iron is similar as far as alloy content....like nickel. If you've never machined either one, then you don't know the sounds a high nickel cast iron makes. The more nickel, the louder it gets. I've machined a LOT of cast iron over the years. Aluminum is fairly quiet in the lathe but you can tell the the softer grades vs the harder grades by the way it cuts. Cast iron fractures when cutting it so you have to know what you're doing in order to get a smooth finish or spend a lot of time with hones. It's easy to get a nice finish with aluminum in the lathe. That's kind of a nutshell explanation but should give some insight. You can overheat just about anything and make it distort though but I'm thinking aluminum engine parts are doing pretty good. I've never had an old aluminum intake warp though....

 

[gtxrt]

Keep the fuel from boiling and I’ve heard it helps fuel distribution, so I’m trying it out. If it it doesn’t, not to sound like too much of a smart ***, but guess what? It can be removed!

what i aways do maybe you already have is make some block off plates or valley pan with block offs, then drill a 1/4 inch hole. cuts a lot of the heat out and the holes help exhaust reversion what you get when completely blocked off.

 

[Cheapsunglasses]

what i aways do maybe you already have is make some block off plates or valley pan with block offs, then drill a 1/4 inch hole. cuts a lot of the heat out and the holes help exhaust reversion what you get when completely blocked off.

I’m running aluminum heads, so I really don’t think I’ll have an issue because they don’t have the heat crossover. But better safe than sorry imho