power valve size

Yep you must be doing something right. Yes four corner, I looked at trans slot when I started. And I agree I don’t know why 10.5 pv. I will probably mess with it before next week when I call dyers. I’ll just go back to the start. And try again. I did have one of these carbs on a smaller supercharger and it ran great no problems. Here in Colorado I’m sure my carbs will be jetted completely different than yours when it’s worked out.