[DougD]

George
The cam I have is a solid lifter Comp Cams 294S-10 with .605 gross valve lift, 248 duration at .050, 110 degrees separation, valve timing at .015 int open 41 BTDC close 73 ABDC exh open 81 BBDC close 33 ATDC, with cam installed at 106 intake center line.

My block is bored .017 over, with Keith Black BB Chevy flat top pistons. The machine work was done locally with a 10.5:1 compression ratio target with the 76cc Edelbrock chambers. As stated above, the compression will be somewhat lower with the larger Shelby chambers.

I appreciate your input on this, however I'm still going to use these heads. Wouldn't it be easier and cheaper to swap cams vs. "remove the exhaust seats, install smaller seats and smaller valves on the Shelbys and start all over"? Can you recommend a cam? To be honest, I'm having second thoughts about the cam I selected as being a little too wild. My car will see club open track events a couple times a year, and some limited weekend street duty. I'd prefer to stay with the solid lifters.