I would go along with that if mine was 10:1 and had a milder camshaft. I've talked to those guys a LOT, as the early hemi is new to me.
I tore back into er and removed one of the silver springs and replaced it with the stock light spring. I got to thinking about it and remembered I had put both the light springs in the 351M in the F250. It was too much. It had a slight erratic idle because it was trying to advance at idle. lol Gonna be a while before I see how it runs, but I have one more piece of the puzzle done.
Next I am going to install the adapter plate and transmission. That will be a big chunk knocked out.
