1967 Ford Mustang engine hesitates when you accelerate

1967 FORD MUSTANG
V8 • 2WD • AUTOMATIC
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1967 Ford Mustang Fastback mileage: unknown.The engine hesitates when you push on the gas, it idles fine, at about 1000 rpm, and it has a mild cam. When you take off, it has a hesitation, when you shift gears, (normal driving) it hesitates until you get your RPM up, it you are in forth gear and you push on the gas to go a little faster it hesitates. It has a new rebuilt Holley 600 dp and new spark plug wires, new distributor cap, Mallory ignition (Unilite); timing is set to 37 degrees TDC at 2000 rpm. 1-7 cylinders have 115-120 lbs compression, and 8 has 110 lbs.

Feb 10, 2011 at 11:22 PM
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Check the engine for vacuum leaks, hoses and intake manifold gaskets, etc. If these check okay, check the accelerator pump in the carburetor for proper operation. In addition, check the carburetor for the correct main jets and power valve.
Feb 10, 2011 at 11:25 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.