Rebuild 915 heads or go aluminum?

My machinist quoted me $800 after they were checked out to be good builder heads. I'm glad he didn't charge me for checking out 2 sets of heads just to find a set of good ones.

I am in your shoes with the heads allready. So there was no extra cost in getting the heads.

But I still needed valves. More money on top of it all. Just not worth the cost vs. performance factor for the build at hand.

If it was a stock rebuild for a resto car, that would be one thing. Not part of my plan.