i swore i had made a thread with pictures and such...but anyhow
26mm 1990 NA zbrakes will fit up front on these s13 se wheels. The ribbing on the backside of the wheel (seems early dohc s13's have the "right"wheels) varies and i cant find the comparison shot, but like i said, they do clear these..they will clear the others with a small spacer.
where in pa are you?