Hello Everyone. This summer I will be installing the original motor back into my car. The engine has all of the original parts from the carb. down, minus the pulleys. I would like to get about 450-500 hp out of the motor on pump gas. Even though my car is an original numbers match car, I want the engine to have more power than it did from factory. I'm not sure if the engine will even need to be bored, but I want all the "main" factory engine parts used such as the carb, intake, heads, etc. Anything that can't be seen, such as cam, pistons, etc, can be aftermarket. If I go this route, is 450hp to 500 hp on pump gas possible? Thanks for all your help!