Quote:

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Quote:

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http://www.summitracing.com/parts/hly-0-4778c/overview/

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Overkill

Why do people insist on putting oversized carbs on engines?

A 600 cfm would be best, heck a 500 would be better than a 750 for what he's building.

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I know I did it when I bought my first carb for my 340. I bought a 750 DP thinking I'll grow into it. And if I'm going to spent big bucks I don't want something too small or won't let my motor make max HP.

Drove the car for too many years with it, never ran that great until I got it up in RPMs.

Then got a 600 and it out runs that 750 on the street and runs so much better on the street.
Got holly 650 sitting on the bench I'm gonna try this summer to see if I can dial it in.

I've been running the 600 now for a long time, got it figured out for all altitudes and temps.

I'd say go for a 600-650 max CFM.