[gsharapa]

For those of you running 482/496 FE (600HP up) with 850 Quickfuel or Holley carb I'd be interested in knowing what primary and secondary jets you are running and power valve in the primary and do you have one in the secondary?

I'm running 496 with a Quickfuel 850 and had it dynoed at the crank and then again on the chassis dyno but as you know those always focus on the WOT and I have a lean condition on the primaries say entering on an expressway on ramp in second or third running up to around 3-4,000 rpm and not into the secondaries. The QF came with 76 primaries and 84 secondaries with a 4.5 power value in the primaries. Taking the carb apart I have 70s in the primaries and 80s in the secondaries however they are holley jets and it appears QF may be a bit different. I'm back up to 74s in primaries and 82s in secondaries (QF jets) now an almost eliminated issue but thought I'd like to hear what everyone else is running.