Okay, it looks like the 20b conversion is going to cost a little too much. It's really close though, like right at the border where it's just a toss up. Damn it! So can I get about 400hp to the wheels with a street ported 13brew with reasonable reliability? That's my goal for right now, I want to go higher later, but I guess I can do the 20b thing later too.

 

You can do 400rw with ease. No need for a 20b.