that car at calder last nite with the rb26dettran a 13.8 he had the r2 gtr motor in it .. i was talking to him.. he spent 5 grand on that motor and olnt managed to get a 13.8 out of it,, ( heheh and i managed at 14.1 with a stocky rb25det hahahah)
if i were u i would get the rb30 bottom end and bolt on ur heads
u would probly gain more power that way
thats what im planning on doing anyways...