Are you referring to the Quick Fuels or the Pro Comps in Summit?
Personally, if I'm going to spend that kind of coin on another carb...I'd go right to Quick Fuel directly and have the carb set up specifically for my combo. Those carbs that Summit sells are nice with the billet parts, but unless you fill out some kind of spec sheet and send it to Summit...they're just going to be a standard carb. I'd rather call the place directly and talk to the carb guy that will set it up for you.
I'm no carb wizard, but when you talk to a carb guy that knows what he's talking about...you start to realize about all the tuning of the different circuits that these guys do...and how much they take into account things like convertor/gear/cam overlap. There is a TON of stuff that can influence how they tweak them. Add to that, basic stuff like deburring the main body, thinning throttle shafts..I personally think it's money well spent. I've seen a good Quick Fuel carb pick up 15hp over a $650 Holley HP on a dyno...wouldn't think that you'd see that kind of gain over what is already a very good carb, but it's possible.
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