318 build up

Just remember that the more radical the engine gets,the less friendly it will be on the street. Issues with overheating,idle quality,plug fouling and little bottom end torque are some of what might happen. You will also need deep gears and a hi stall tc.

Depends on what he wants to do........

And, properly tuned, the plug fouling, is moot.

He said 12, maybe 11's.........