Mike,
340/275 HP {1968 thru 1970}
* Carter AVS
* Throttle Plates.... {1.437" Primary x 1.686" Secondary}
* Venturi ..............{1.186" Primary x AV Secondary}
* Primary Jets ...... {.089"}
* Secondary Jets .. {.095"}
* CFM Rating......... '630'
Note; This is 'directly' from the Carter Carburetor Specification Book {old schoolbook}.
