Hey gang, I just had my carb rebuilt, bolted it up and tried to start the truck. I don't know how to describe this other than...... The truck will start and seems to be running. However, as soon as I let off the key the truck imeadiatly dies. If I hold the key "On" the truck starts and I can rev the engine...etc...so I am pretty sure that it is running, but the starter is too. And like I mentioned as soon as I let off the key the truck dies. ??? Anyway, I have never experienced anything like this. Any insight would be appeciated. I appologize if this has been discussed before, I didn't have the time to search like I usually do. Thanks, Ryan Oh...by the way, I have never had the truck running. Rebuilt the wiring harness, the stock ignitor failed so currently I am bypassing it by using a condenser per the Haynes manual instructions.