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Hi. If there's "pooling" of some fuel in the rear intake manifold "valleys", could that indicate a bad acc. pump?
I have a 1973 mustang with a 351C engine, stroked to 394.6 cu. ins., yielding 500 h.p. and 500 lbs. of torque,
and runs quite strong. There's a quick fuel 750 cfm with manual secondaries carb. Front jets are 72's while the rears are 84's. The power valve is a 6.5 ( it pulls about 12.5 inches at idle.) The 4 squirters atop are all 35's. Carb rums on 6 lbs. fuel pressure. Manual transmission. The secondaries carb linkage is set to a 40% or better throttle, with the secondary "cam" being a "light pink" in the #1 position. When I deliberately "get on it" with a STEADY, interrupted press to WOT, she flies terrifically. But when I "stomp it", there's a split second bogg until it catches up to itself and resumes flight. My exact question is: With noticing some fuel "pooling" in the intake manifold "valley", just below the the secondary accelerator pump, could the "bogg" concern be from a bad secondary accelerator pump, possiblly being revealed by the "pooling? Could there too be a need for a recalibration within the secondary circuit (pink cam and mounting position, jetting, or squirters)?
and runs quite strong. There's a quick fuel 750 cfm with manual secondaries carb. Front jets are 72's while the rears are 84's. The power valve is a 6.5 ( it pulls about 12.5 inches at idle.) The 4 squirters atop are all 35's. Carb rums on 6 lbs. fuel pressure. Manual transmission. The secondaries carb linkage is set to a 40% or better throttle, with the secondary "cam" being a "light pink" in the #1 position. When I deliberately "get on it" with a STEADY, interrupted press to WOT, she flies terrifically. But when I "stomp it", there's a split second bogg until it catches up to itself and resumes flight. My exact question is: With noticing some fuel "pooling" in the intake manifold "valley", just below the the secondary accelerator pump, could the "bogg" concern be from a bad secondary accelerator pump, possiblly being revealed by the "pooling? Could there too be a need for a recalibration within the secondary circuit (pink cam and mounting position, jetting, or squirters)?
