Anyone ever run Speedmaster Heads on their small blocks

If it was “I” doing any head work and not a machinist charging me, it would just be a bowl porting, a minor pushrod pinch touch up & a port match since I’m doing the work and I have the tools.

The aluminum head benefit is really, well, stupid to ignore?

I can still make a good case on using what you got and save a ton of money but really only if your (and you don’t mind) doing the work. Then there is the amount of head flow to start with as what you may or can end up with. Again, if you don’t mind doing the work,.... the iron head will probably fall short of what you can get cheap these days.

IF! Your head is in good shape and doesn’t need any machining, then is just labor and perhaps some bits to grind with. You can get some pretty good air flow with an OE head. You can go quick. It is a lot of work.