i would have try and find old times slips. Honestly dont remember.
Dominator was a couple worse in 60 foot, better elsewhere.
It was not just that engine. I have never had anything not pick up with a bigger carb. Been racing last 25 years after prior to that taking a break for a long while..kids, etc....after my younger racing days.
That said, gonna try an 850 on this new 418. Formula says it wants 830 cfm roughly, so we will see. I bought it because of the color, they dont make it color i want in a bigger carb size..lol.... never had an 850 in my life till this one( its ordered, supposed to get it on 19th)