My advice to the original poster is to call the guy with 5 sets of iron heads in his shop.
That reminded me....... There's actually 6 sets here...... and another on the way.
Oh, and that's just the Mopar heads.
I'm not sure if iron hemi heads count, but if so..... Then add another set.
Got a few others of some different make iron stuff here as well..... And more on the way.
I don't mind working on them at all.
As long as the person having them done understands that quality work takes time...... And time is $$$$.
