505 cid intake and carb??? Any suggestions?

[fourgearsavoy]

Here it is on the engine.

 

[mala]

That’s really good info. Can you share the track data for the three different set-ups?

Do you know the throttle bore and venturi size on the 850 Pro Form?

Thanks

Pro Form 850 DP is 1.40 in venturi size.
Holley 850 DP has 1.56 venturi.

When looking in my notes this is the result with a SFT cam with dur 251@050. On a 1/8 track. All intake have been portmatch and a plenum clean up and running with 1" open spacer.

Holley S/D with Pro Form 850 DP = 97,3 Mp/h

M1 intake with Holley 850 DP = 99,8 Mp/h

T/F Track Heat with Pro Form 1050 AN = 99,9 Mp/h

I have try the 1050 AN carb on the M1 intake and Holley 850 DP on the T/F intake and there is no gain, both have same top speed.

 

[BSB67]

Pro Form 850 DP is 1.40 in venturi size.
Holley 850 DP has 1.56 venturi.

When looking in my notes this is the result with a SFT cam with dur 251@050. On a 1/8 track. All intake have been portmatch and a plenum clean up and running with 1" open spacer.

Holley S/D with Pro Form 850 DP = 97,3 Mp/h

M1 intake with Holley 850 DP = 99,8 Mp/h

T/F Track Heat with Pro Form 1050 AN = 99,9 Mp/h

I have try the 1050 AN carb on the M1 intake and Holley 850 DP on the T/F intake and there is no gain, both have same top speed.

Thank you!

 

[LemonWedge]

That cam will make most of its power below 6000rpm. The RPM manifold is really tough to beat through 5500. I’d go with with it, and would be willing to bet large sums that it would be faster with it than the TM7.

 

[Dodge 330]

We use a ported Street Dominator and a Demon 850 carb. Drivability is great and has been 11.1 @ 121 n/a @ 3,700 lbs. Once we got it dial in, I haven't had to mess with the carb in over 9 years! I had a stock SD on it and put on a ported unit and it picked up a tenth.