Carburetor cfm calculator

Dan the man said

Yes it is and it probably won't see much over 4,500 rpm's for the most part. I thought about a 650 eddy and a performer intake or would the rpm performer intake be a better option? This car will not see any track time, probably some stop light to stop light fun once in awhile. My goal is for the car to have good throttle response and decent low to midrange torque. I want the car to be able to get out of it's own way and be able to pass other cars with out difficulty

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I take it You have a 2bbl on the engine now? If You gotta buy an intake, the RPM will be a better choice IMO, leaves room for growth. A performer ain't no better than a stk. TQ intake, just lighter. An AVS/TQ or Vacuum Secondary carb like a Street Avenger will let You go larger, again with room to grow, without destroying fuel mileage like a Double Pumper.
As is, a 650 AVS or 670 St. Av. will do You fine, a 750/770 gives room for more cam etc.
Don't get too "bent up" about headers, You can get into the low 12's on a set of 1&5/8" heddmans, so big tubes ain't needed, Quality & Fit are more important to You....