Paul i have a standard R33 turbo and willing to do a swap plus $$ your way for that GT3071R mate....you could try the R33 turbo and see if that makes a difference....mine on 12 psi made 211 on a RB25 though....i have heard of my mates r32 making 190-200 with a few supporting mods and a R33 or R34 turbo....and apparently its very responsive