[Mosrite]

I just replaced my old motorcraft 650 with a Holley 750 with vacuum secondaries. We're still fine tuning things as I'm at 4500 elevation. It's had it's hiccups and I'm not sure it's performing like it should. After reading some posts I'm wondering is this too much carb for the 351C. I don't know any of the motor specifics other than it has the edelbrock performer manifold.
What's your humble opinons on a 351C and the 750. is it doable, or should I bump back down to a 700 or 650cfm?
Thanks.