Had a LS motor, Kurt at KG Engineering built it to handle 150shot of laughing gas...but it was also same if not higher compression than a Type-R....That was 4years ago and it still gives V-8's a run for there money......What's cool about a ported and polished LS head is that you don't have to wait for VTEC and with the right cams and tuning should be able to smoke'em. Doesn't anyone remember what motor started all this Honda Performance Craze............Tony Fuch, Dave Shih,and even Steph ran crazy modified LS motors.........way back when we started this madness.