[Rick Bagley]

Alot of good information here, I have a 3310 Holley 750 CFM on a 427 solid lifter engine, around 500HP. The only thing I would add is be sure the valves are adjusted and as stated the timing set before doing any carb. adjustments. My car performs great with the light spring (yellow), and primary jet size 74. I did put a Proform Body on the 3310, (good 95.00 investment). I have not changed the stock secondary metering plate. Idles great and the secondaries open up at the right time. Other adjustment are the same as posted. I did have to use a 31 squirter, came with a 28.