Got my rb25det from r33 skyline forsale across the board from 1 to 5 cyl is 145 to 150 and last cyl number 6 had 80 psi due to fuel surge the guy I bought it from a year ago said he put new rings ect but had no paper work, head is fine no dramas just last cyl, located in epping Melbourne please call me on 0457 245 473 for photos, comes with bare inlet manifod and all rocker covers cheers