@@Powerhousegarage217 correct l31 lt4 hot cam flat top pistons 7/16th screw in studs cut the stud bosses down guide plates ls beehive springs 30 degree off set keepers and ls retainers stock crank up the harmonic balancer you’ll be at 510 get u some good long tube headers 650double pumper true duals and some flow master 40s you’ll be thumping
