then just sell the heads and use that towards the turbo parts. see sig below. i ran stock motor with ZZP's Z7 kit. never blew a headgasket. it did chip #5 cyl but it was my fault cause i turned off my meth injection and it ran lean on part throttle in boost. ran plenty 15psi+ (partly cause i had a built trans back then) and never blew a HG.