Like Stan says, Brian, all or nothing. I'm with Stan 150% on this. Either precisely Pat's formula or ????? you won't know what you'll get.
Stan: Brian and I put this engine together, well, together. He knows exactly what his ports(and mine) look like.
I do like what Al is saying, maybe just throw 38 vents in his existing carbs, after we remove the heads for flycutting. It's at 8.8:1 now from what I remember, but I didn't write any numbers down. Not my circus, not my monkeys. I just charged free admission LOL!