If I were you & money I'd 1st sell lude for a H22 manual already because I here it's a pretty expensive job.2nd what's the amount of $$ you have to spend.3rd since you want to boost you can have a H22 5spd tranny installed & get rid of the H23 head for a H22 head. That's a good power curve to begin with. I'm sure people who actually have a lude can help you better.