GMC53,
Welcome to the Stovebolt. It sure sounds like you have done everything right.
Have someone try and start the truck as you hold a plug wire to a ground on the engine, you can verify it has ACTUAL spark this way.
If it doesn't have spark, some item in the ignition system isn't proper. I didn't see the condenser mentioned in the replacement list...just an oversight!
If the truck IS showing spark, then it might be a fuel issue. Bad gas or no gas would be the first thought.
Your first task is to see if there is "fire" to the plugs...if so, think fuel. If no, go back and check points, coil/cap and condenser.
Nothing will happen if you don't have 6 volts to the coil [is the key on]. This can be checked with a little volt meter. The idea is to narrow down the possible causes through detective work. Take a day off, think about it, and start again with renewed spirit!
GMC's are much easier to work on than Chevrolets!
Stuart
