Carb size ?

if you want a slant to run, pull the head and have it milled, and ported at a minimum... if your plans are something more then 1.7/1.44 valves blended in, upgraded manifolds(duals like memikes or headers) offy intake for street use (small port and plenum for fast velocity) and a 400-550 cfm carb. if your going to upgrade cam for anything other than a RV torque cam then dont bother with comp, call erson or oregon.

i would start a 220* @ .050 with max lift.

normal rules of thumb are the three C's. Cam, Carb, compression. slant are Cam Compression and Headwork...