ok made up my mind, got solid main web 76 350 with #8 heads, stock pistons, stock bore, how much should the heads be cut to get 9:1 cr? going to port and polish heads, stock valves, 264/280 duration at 0 lift with 440/490 lift and 112 lobe sep... stock intake and exhaust with true duals, if one of you have done something like this could you tell me how it did, oh and 7.5 rear with 2.31 and 14" any info would be apreciated. putting it in an 86 cutlass for my son.