Edelbrock C427x manifold
You don't say what you are going to use this engine in. First you need to have the block and heads checked out at the machine shop. It would be best to bore it .030 and zero deck the block if it is stock. Check the valve size in the heads. They would be better with 2.19 intake and 1.88 exhaust valves. This engine can produce about 400 hp and 510 lbs. torque with the parts I have listed. Factory crank, factory rods with ARP bolts, KB201 .030 pistons, XE274-3 11-246-3 Comp Cam, factory heads 781's, Fel-Pro Q1071 head gasket, Edelbrock 7161 intake, Demon 1563010VE vacuum secondaries carburetor.