1970 Pontiac GTO Flat spot when exceleration

1970 PONTIAC GTO
70,000 MILES • V8 • 2WD • MANUAL
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MRGREENSBURG
  • MEMBER
  • 3 POSTS
My 1970 GTO with stock quadrajet carb,
has a flat spot/ hesitation when first excelerating.
Carb was rebuilt once and problem continued.
Look at and replaced excelerator pump and
still boggs. Any ideas? Thanks
Dec 17, 2009 at 6:41 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Sounds like its coming from the Carb could be the Acc pump or power valve and if not check the distributor vacuum advance unit
Dec 18, 2009 at 5:59 AM
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