If you want a good guy to really put things in perspective, call Dan Paramore in California. (310) 523-4074.
I run a .20 over bottom end (my stock engine was real tired with about 110psi, as opposed to the 185psi I have now, due to fresh rings and stock .020 over Honda pistons.)
Dan built me a cylinder head for 800 bucks, and I went out in Sept.(2002) at Beaver Run with it, and took second to Brent Breon's crx.
Brent was super fast, and I couldn't catch him, so he might have some tips for you as well. He is a mechanical engineer and is always on these bullentin boards as well.
Moving on....with Dan's head I was able to pick up a ton of HP, so it was worth it.
If I was in your shoes, I would just get a head done and then decide on a full bottom end next year. You will know where you stand after you get a good head, cause that is where a good majority of the HP is anyhow.
If you do call Dan, he will help you understand, he gave me a crash course that has saved me thousands....I thought I needed a full blown 4k King motor too, come to find out, that I had a southern motor builder build me a head, and it came back with a DX camshaft in it, so I raced it for 3 years and couldn't figure out how I was only finishing in 13th? Dan caught the problem and we jumped to 2nd, then went to Nelson for the Pumpkin and took 2nd in the sprint and won the one hour enduro....
Now I can't wait for 2003!
Chris Stiffler-Owner
Street-N-Track Autosports
Medina, Ohio
(866)438-3966
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http://www.Street-N-Track Autosports- owner
ITA CRX Si #21
Central Division SCCA