86-95? All are thin cast blocks and will cost no where near $15000 to build. It would be a good idea to start with a good foundation like a dart, world, or boss 302 casting.
306, e303, gt40x , frpp 1.6rr's, GT40, 70mm tb, 80 mm pmas, frpp 42lb inj, walbro gss340, t-rex, msd 6 btm, BBK Longtubes, off road X, Mac cat back, vortech sq trim, snow boost cooler, pms and zt-2
478 rwhp @6000 new numbers soon
421 ftlbs @4100