PDA

View Full Version : Difference in Jetting


High Roller
05-22-2009, 10:51 AM
Got looking....the QF kits use gasoline jets (which may end up biting us) and the PS uses alcohol jets. Holley gas jets do not use drill size (hence why we are at 106s to 110s vs you guys at 140s-150s however our drill sizes are very close). Holley gas 110 jet is a .156 drill size.

Anyway, that is the BIGGEST jet we can get since the alcohol jets are 5/16-32 and our gas jets are 1/4-32.

Basically just FYI to those wondering about difference in jet sizes.

QF says to reduce air bleed to help if we get to the max. I am assuming I will once we all start getting e85 rather than e75 (needing a bit more fuel to offset less gas).