Well I won’t say I’m never going to buy another set of Speedmaster heads

It’s a lesson learned. I told my customer how much the job would be and I stuck to it. He was more than patient and I learned from it. But I will now quote a price with an explanation that I can’t cover screw ups from the manufacturer
There ya go John!
I was wondering why you fixed those factory issues, per gratis. It's not your fault the manufacturer can't get it right. (I know, cause you're a good man )
I had an old friend bring me some Edelbrokes, and when I informed him of the problems, he wasn't happy.
But he was very happy they got fixed.
BTW, I had to machine some of the outside features of the heads too, cause the name brand shorties collided with the bulkier castings.