My advice on how to tune that carburetor on a 500 is, throw the 950 on the shelf and put a 1050 Dominator on it. The 950 only flows 830 CFM. That ain't near 'nuff.
I've long since lost my understanding of the Holley carb numbering system, but I'm not sure that 1.600 Venturi carb is the 950 that only flows 830. I could be wrong, because like I said, I don't buy Holley stuff. I think the only way that big Venturi could only flow 830 is if it has 1.687 throttle blades or something.
I guess I should get a new Holley catalog so I can look at what they are doing.
