Wondering why nobody says... Wow great idea. Get some old high comp small valve heads for practically nothing cause nobody wants them, spend $750 at the machine shop, throw them on and rip it up? My experience is that if nobody says that there is a very good reason. What reason?

I would think that any second hand 40 year old heads are going to make a trip to the machine shop anyway so pressed in studs could be easily resolved. Like everything else it cost money but doesn't come near the cost of aluminum heads. Also I have this sort of odd nostalgic side that says if it isn't going to be original it should at least be era appropriate. Somehow helps me justify things like taking off my steel wheels and hub caps and putting on some Rally IIs. So using 1969 heads on my 1969 feels right.

I've been playing with compression numbers and the calculators. Lord knows if I did it correctly but seems like with the #16 small valve heads and bored 30 over I would be working down from somewhere near 10.5 in order to get to pump gas. That might be a good reason?