I'm converting a bracket car back to street,had a car accident last year and now have 4 fused vertebres & a plate in neck.can't drag race but still want to enjoy car on street,car shows etc. here what i have 69 camaro all steel now 468 12.5:1 crane r274 nitrous roller cam 737 lift.990 heads 5000 stall protree brake th400 12bolt w/4:88 gears.msd 7al3 elect. 1050 domn.I'm changing stall to 3500.trans to built 400 and gears to 3:73's my question is eng? cam to large? pistons to large? for street?Any and ALL help would be great THANKS IN ADDVANCE MARK B. DALLAS TEXAS