Shuts off when put into drive

1976 CHEVROLET TRUCK
50,000 MILES • V8 • 4WD • AUTOMATIC
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MRS CHEVY TRUCK
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Brand new rebuilt motor boated thirty over, new carburetor, new fuel pump, new valve covers. It ran great then one day it just started shutting off. Whenever I start it runs fine but soon as I put it into drive it shuts off immediately.
May 9, 2018 at 8:11 PM
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PATENTED_REPAIR_PRO
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Is it idling too low?
What is the base idle set at?
The hot and cold idle speeds should be shown below.
May 10, 2018 at 6:52 AM