1970 Other Chevrolet Models my truck hesitates on the highwa

1970 CHEVROLET
198,000 MILES • V8 • 2WD • AUTOMATIC
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EAGLES8181
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ok i have a 1970 chevrolet c.10 and i already changed the carbuerator on the truck cause the last one was old... so even after changeing the carb on it....i got on the highway for the first time after that and when i go over 55 mph it starts to hesitate and jerk when i accelerate.. but under 55mph it is perfectly fine so im wondering what is the problem and what can i do to fix it ?
Aug 4, 2009 at 7:29 PM
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HMAC300
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check to see if the weights in the distributor are sticking. Also check your fuel pressure as you may have low pressure or a blockage at a fuel filter.
Oct 5, 2009 at 8:53 PM