My friend is the process of gathering the parts he will need to put an ls-vtec in his crx. My main question is does anybody have the address to the site that gives the compression ratio for varios pistons in different blocks. I thought I had it bookmarked but can’t find it anywhere. Also, what do you guys think is the highest safe compression ratio to run on 92 octane gas? I know that Phil is running 12:1 in his car. Another question is what is the best way to get high compression? Suppose one piston gives you 12:1 in an ls block. Would that be better than using a lower compression piston plus either milling the head or using a thinner head gasket to get the same compression? Thanks for any answers that you guys can give me.