cam size help...for 350
we have a 89 chevy block.13.1 steel crank yada yada.the heads are 2.02 dbl hump with some porting.it will be running alcohol.930 carb.kooks headers 1 7/8 tube.single plane intake.i allready have a set of hyd roller lifters from comp cams.so i would like to go hyd roller again.or i can go a differant route.just looking for some input.