Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

7040207

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boat196:
1970 350/350hp, you rebuilt the carb, ran motor on engine dyno. BCFS was .501 at 3000 rpm and .571 at 5800 rpm. The operator noted the motor was running rich. Your thoughts.
Thanks Bob

77cruiser:
Did it have a wide band on it on the dyno? Either rich or inefficient. Or malfunction of the fuel flow meter.

boat196:
No it didn't have a wide band. What's the fuel pressure range for a quadrajet.

Cliff Ruggles:
Fuel pressure should be around 6-7 psi for dyno testing.   How much power did it make?

Was the engine stock, or modified anyplace?....

boat196:
The motor is basically stock, except for cylinder head and intake porting the motor made 336 hp @ 5500 rpm and 364 lb ft of torque @ 4200.
Bob

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