1971 340's True HP?
What's the CFM of the 71 Thermoquad compared to the AVS?
The Carter AVS {1968 -thru- 1970} that was found on both the 340 4-Barrel
and 383 4-Barrel was advertised at 625 CFMs for marketing purposes.
Primary .......... 1 7/16 {1.437"} ......... Venturi > 1.186 {1 3/16"}
Secondary .... 1 11/16" {1.686"} ......... Air-Vacuum Operated
But the Carter AVS was closer to a true 630 CFM rating.
John Bauman {Fuel Engineer} for Chrysler Racing had several articles stating
that the {above} Carter AVS Carburetors that he tested for CFM flow ranged from
618 to 635.
The best 'off-the-shelf' that he ever tested, flowed at
637 CFM's.