Originally Posted by 3hundred
Sounds like the rings haven't yet seated? Did you degree the cam or just match the dots? IIRC, and it's been a LONG time, Holley's come with a 12.5 HG power valve and you're only pulling 10 HG? So the PV is open the entire time you're idling?


has holley changed? used to all be 6.5's. BTW I have b-tt load of new ones LOL beer