Re: '67 Chevelle Won't Start
What is your startup routine - Do you depress the gas pedal to the floor one time, release it, then turn the key to the Start position?
I recently helped a fella who had the same issue with a classic he just purchased. He refused to pump the gas before trying to start it, because his owners manual for his newer, fuel-injected car told him not to do that. I convinced him that fuel injection automatically adjusts to a richer (more fuel) mixture for cold starts, but that a carburetor requires that pedal pump to set the choke, and also to provide a squirt of fuel from the accelerator pump. He was amazed when it fired right up. Depending on state of tune, and weather conditions, some older cars need 2 pumps of the gas pedal, especially if the choke is not adjusted correctly.
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-Jim
2015 Silverado Crew Cab 2500HD 6.6 Duramax 4x4
2002 Silverado Crewcab HD 2500 6.0 4x4 Sold 281K Great Truck
1970 Chevelle SS454 (Gave to my son 9 years ago for his 18th birthday. Yeah, I know, crazy, right? Thank goodness he doesn't drive it the way I would, -er, did...). 
1971 Monte Carlo SS454 Drag Racer. The old girl finally got new paint!
1968 Camaro SS (New race car project). Caged, Tubbed, Back-Half/Ladder Bars. Rolling Chassis (For now).
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