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?
This is our track>
https://airdensityonline.com/track-results/Santa_Pod_Raceway/Best track in the UK arguably Europe. A 1050 Dominator was tried on dyno day and made only 3hp more, (pulled 0.7hg@6000) perhaps carb was junk,or lean, I doubt they messed with it too much to get any better gains. Talked to Dwayne about a bigger carb as well as Mark Whitner and they both said there may only be a 1/10th in the 1/4 with a Dominator with the combo we have, Our 10" proX converter is only 3600-4200 stall was main reason along with CR/low lift etc., its a mismatch of parts really but it does what we want and it runs good through full exhausts and makes almost the dyno hp on track. A 440-3 intake, 1050 Dom, 12.5:1 and 750" lift to use the heads better and then it would work no doubt and we'd be closer to 800hp than 700.
