plemon61
Member
Hello. This is my first post. I'm doing a rebuild on my low mileage 383. My question is if 10.3 compression is too much for xe 268 comp cam which I have already? The motor has kb 197 dish pistons, .025 down, .015 shim head gasket, TFS 195 heads with 64 cc chambers. Edl RPM airgap, Demon 750 dp and 1 5/8 headers. It's going into a 83 chevy wagon with 200r4, 2200 stall and 373 rear gears. Do you think this combo will work with 93 octane, or do i need to lower the compression ? Thank you in advance for any help. Patrick