You know more and more I'm feeling that the money you spend on porting , polishing , pistons , cams , degreeing and all the other things like Ti valve springs , Exhaust , Air filters , Head spacers , etc, etc...starts adding up . Seems like you'd be better served with a Ghetto Turbo Kit . I don't know a lot about engine building but it seems this 1397's still don't put out the amount of horse power as the turbos and cost just as much , if not more to build .