Heres my plans, Its a stock 302 on a 90 lx. Im going to put AFR 185 heads, Custom cam, and have GT-50 lower. Then add the Kenne bell, run 9psi, have good head gaskets,and std. Mods...full exhaust,maf,42lbs inj,gears and good tune. Would that that be pushing the limit of the block with the TQ, and flywheel hp. If it is pushing the limits, would it be worth the swap and extra cash to get a 351w block(forged pistons, hyd roller for $800) and then AFR 185's,custom cam,gt-40 lower, Kenne bell(9psi),full exhaust,ans supporting mods, and good tune. will the 351w block handle HCI Kenne bell 9psi? Im will to loose 1-2psi to keep it temps down and power down to keep the block together.