I have an 89 Honda Prelude si with 252,000+ miles. It drives really good and has alot of new parts. The current motor needs to be pulled so i got another b20a5 dirt cheap, Id like to raise the compression to like 10.5:1 Where should i go to get pistons, cams reground, .. what else should i do thats cheap and worth while. I want it to be reliable while putting out like 170hp. I also have a zex nitrous kit i'd like to use.