If the truck sat with any gas in it all that time and you're pouring fresh gas in the tank to run the truck you're making the situation worse every time you run the engine. The fresh gas will dissolve some of the old varnished up gas which then will stick to the shafts of the intake valves. Consider yourself fortunate that you haven't stuck one or more fully shut & bent pushrods like I did. I had to pull the head and drive every intake valve out of the head mine were stuck so tight. All of that happened after just one time of getting the engine started and allowing it to run after sitting for 20 years.

Last edited by Tiny; 01/14/2011 3:48 PM.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.