Originally Posted by rb446
Well just to give you a run down for reference of what we have>

589ci street wedge motor, 10:1CR
572-13 CNC365 Indy heads
s/roller 260/270@.050, .625"/.625"
440-2 Indy intake, old 950HP carb, 1.375vx1.750 base plate
2.18">2.14" TTI step hdrs
max dyno power was from 5500>5900@695hp at 33 deg. total.
max torque of 720ftlbs@4400

At 6000rpm motor pulled 2.0hg vac on dyno
through the traps@6200-ish rpm its pulling approx 970cfm based on 1.5hg std.


I would have expected a bit larger carb. Have you tried anything larger? The vacuum is pretty low but you never know.
What elevation is the track you frequent?

We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon