Edelbrok or Holley?

[GTX MATT]

Well, if there is an internal differance to the carbs, I would love to know what the heck it is. I have tuned each carb to perform just fine on perfoance kills. I'm not saying they were street killer engines, but performance engines. IIRC, the 360 was cammed with a Comp cam at [email protected].

Any lean calibration carb can be enrichened. Though I certainly steer clear of emission era carbs for performance apps.

I have yet to tune up my 750 E-choke carb. I have a main wiring harrnass issue in my Cuda from sitting a long time. I'll letcha know when I get there how it goes or not.

Sure you can jet anything up, but if the circuitry is wrong/poorly designed the car will suffer at WOT, part throttle, or all three. I think its just easiest to avoid potential trouble and run the manual choke versions. JMO

 

[71SandbugCharger]

Oh found them! Holley 0-80770 Street Avenger Carburetor 4 bbl 770 cfm Vacuum Secondary
Part No. 0-80770 or Holley 0-80457S Street Carburetor 4 bbl 600 cfm Square Flange Vacuum Secondary
Part No. 0-80457S. SteetSide Auto...

 

[GTX MATT]

I have a 770 Street Avenger, it works nice for crusing on a mild build but it never had part throttle response like I wanted, but admittedly it was on a tired 440 with tall gears. I had to jet it up quite a bit to get it making good power on my stockish 440, did pull hard when dialed in at WOT, but other guys have been less than impressed with them as well. A lot of people like the Holley 3310 for a vacuum secondary 750, although it doesn't have a secondary metering block it has a plate which I'm not a huge fan of.

Are you sure its a 750? 1812 is an 800 with manual choke. What is your entire combo? Compression, cams, heads, intake, exhaust?

 

[rumblefish360]

Yes, the combo please!

 

[bm02tj]

the 3310 holley is a 780 cfm

I just pulled my parts manual and it does have a metering block

 

[MarPar]

Are you sure its a 750? 1812 is an 800 with manual choke.

I have an Eddy 1813, and it's an 800cfm with electric choke...

 

[GTX MATT]

the 3310 holley is a 780 cfm

I just pulled my parts manual and it does have a metering block

http://www.summitracing.com/parts/hly-0-3310c?seid=srese1&gclid=COXb4c23pbkCFQya4AodYQsAOw

You sure? :coffee2:

 

[bm02tj]

the original R3310a for 65 396 was with metering block and after market R3310-1AAA was a model type 4150 with metering block

but by the picture it does not have a metering block and with C at end of part number changes it

Bruce

- - - Updated - - -

if you google holley 3310-1 you see the 780 CFM and rear metering block

Bruce

 

[GTX MATT]

Bruce, IDR for sure and I can't find my Holley book, but I believe all list numbers starting with R are those that were OEM equiptment carbs. Maybe they did it different for those - and maybe these are the 3310s everyone seems to like. I don't think they're available as a 4150 anymore though. I know the original rectangular port Chevy 780s were nice working carbs on pretty much anything back in the day.

 

[bm02tj]

they made the OE one R3310a
and an aftermarket auto choke R3310-1AAA
and a manual choke R3310-2A

and now a 4160 type

one day I will get caught up

I used to rebuild holleys for other people but have not for 20 years after wife made me get rid of my 5gal bucket of carb cleaner

Bruce