obviously some peeps on here dont know **** when it comes to b20s. i ve installed 8 b20bs including my own. they all push 250-275ish on 8-10 psi all day every day drivers no probs in 4 + years. just gotta find that sweet spot. no b20z or high compression crv motors as high compression b20 with a small cc chamber vtec head is even higher still then add boost ontop of that... thats what causes higher cylinder pressures and probs with those particular sleeves...stick with a 8:8:1 compression b20b and remember to open up the intake valve pockets on th pistons slightly as the v tec valves and lift in vtec are bigger and higher. and swap in the stock rod bolts for some arps so you can get a reliable 8000 rpms out of em...got almost 60,000 boosted miles on my b20. good luck.