Anyone have an opinion on these?

750 cfm w/no choke and smooth contour venturis, available in mech. or vacuum secondaries

I might be in the market for a new carb later on and am curious if one of these would be of any benefit to my combo over the 650 spreadbore thats on now (old, worn out, too many minor problems to be worth my time since a good rebuild didn't straighten everything out)

the prices aren't extreme from Summit and I have no use for choke anyway

355
flat top hyper 4 relief
comp 268H
fully ported 882 heads
HEI w/msd 8.5mm wires
headers, 2 1/4 exhaust

700r4
3.08 posi
295/50/15

I don't know if this will necessarily gain ET or MPH, but I'm looking more for less hassles with leaks and other quirks. Will this be too much carb?

no opinons?