Awesome DIY build!!!
I'm trying to get my buddy to put a tranny into his turbo E30 (he blew it up after almost 2 years of beating on it with 400whp).
Once you get everything sorted, turn up the boost a little
... 350-380whp isn't an issue on the stock motor with a good tune....
Just a question, you didn't mention it but it's a common thing to do when boosting an M20.. did you happen to get the coolant channels welded on the head? It's something I would highly recommend doing eventually if you haven't done so yet.