Cam Degree

thanks for the replies.my previous set up 7.9 compression ratio would have a little shake after shut off, i believe it was due to having a hydro camshaft with mechanical rockers. Even though it never kept running once in a while it would have a little shake after shut off.

Once i swapped heads and milled them .100 to achieve 9.1 CR swaped to the howards 473. lift camshaft the problem arose. the carb is new and idle is set low so the butterflies are closed. timing is set at 5 degrees. cooling system runs at 175-185 constant. plugs are colder ngk ur6 gapped to .45 running HEI
also when i swapped heads i cleaned the carbon deposits on each piston. instead of running a double roller chain i ran a single one.