I love to work on cars and trucks, but I don't know much about compression ratios and displacement and what not. I would like to build a 400-450hp 350 but don't know where to start in order to get the hp, I have a 350 block out of a 74 camaro, the numbers show it was a 145hp engine. Can anyone help me out with cylinder and piston sizes. any information would be greatly appreciated thanks.