I'm looking to start build a new motor for my boat it 74 22.6 Hustler with a jucuzzi pump it cuurently has 396 40 over with small oval port heads. My question is I would like to build something in the range of 600-700 hp, can i acheive with my existing blockor should i start from scratch and will i need to run a blower to acheive this power on pump gas or not? What kind of cost am i looking at to build some thing that makes 600-700 hp?
Thanks for the help
Hustler