I am with the other guys, fly cut the pistons, and mill the heads down. I am running the Holley 2.02's (62.1cc) with a .509 lift cam I have .100 clearance with my stock pistons, but I am fly cutting mine to add a bigger cam as well .548/.565 I haven't made my mind up on milling my heads as I plan on putting a blower on the car in the future and it would like the bigger chambers. Remeber fly cutting lowers the compression.
Rick
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My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98