Got the 572 back, Now lets find some power

[dvw]

i hear you,,,,here's the thread page 1 half way down.

Indy EZ/440-1, Victor, RPM Perf or Stealth Heads for 440????

You didn't include that the engine mentioned was on E85. 12-1 on E 85 is about 15-1 on gas. That's super lean. A gas engine will be pig rich at 10-1
Doug

 

[stage3]

You didn't include that the engine mentioned was on E85. 12-1 on E 85 is about 15-1 on gas. That's super lean. A gas engine will be pig rich at 10-1
Doug

and thats what i thought also....

 

[INTMD8]

You didn't include that the engine mentioned was on E85. 12-1 on E 85 is about 15-1 on gas. That's super lean. A gas engine will be pig rich at 10-1
Doug

Yeah if the wideband was on an E85 scale even 10-1 is super lean as 9.68 is stoich. I would start targeting wot a/f around 8.5-1