magnum heads
I had a bad experience with "remanufactured heads" from Alabama Cylinder Heads. I bought a pair of 302s for my 318 and took them to a local shop to get alittle port/polish work done. Turns out they only had a 1 angle valve job, the valves and valve springs were used and the roundness of the valve stem was way way off. I would DEFINATLY get a reputable cylinder head shop to go through them and I would expect at least a good valve job to be done.