the carb in question is a 770 avenger vac secondaries.
the engine is a SB 410 cid, xe274h hyd flat tappet cam 4in stroke and 4.04 bore
ported 2.02 and 1.60 valves cast iron heads eddy rpm air gap intake.. long headers.. auto 904 in a dakota with 355 gears
the carb has 72 jets, and what...