Yes. If you don't spend the money for new valves, screw in studs and guide plates, new guides, & resurfaced. If it's a guide knurl, valve job, and resurface it would be a cheap upgrade. Valve job for stock and larger than stock valves should cost the same and make the valves stick out in the chamber farther while e-bay has 1.94/1.60 stainless valves for $48 a set(I have bought 2 sets for my 351W heads already) and that would be a cheap upgrade. About $55 after shipping and are very nice valves for the price. $100 to remove studs and machine for screw in studs. $25 on e-bay for new screw in studs and guide plates. That would be a good and fairly cheap way with good parts. Your '85 302 would run much better from the bigger valves, bigger intake ports, and higher compression. Those heads can be milled .030-.040" without any intake alignment problems and increase compression even more.