I've got a kid that's been working on my truck at school, and this is the issue he has had 2 days in a row on it. It starts and idles really good, he allows it to warm up, and then proceeds to drive it and when he gets back, it sputters as if it's not getting enough fuel, it will continue to fire as long as you keep the rpm's up on it whether that's idle, or driving he has to maintain some sort of pressure on the throttle. Prior to the work I had the idle around 875 rpm, and now it's down around 650 to 700. He installed a 4k GSK kit on it, and advanced the timing on it yesterday, today he readjusted the time back to stock, I believe it had slipped. He torqued the nut on the gear to 150 ft. lbs. Does this sound like it is a GSK problem, either too tight, or not enough. I think it needs the idle turned up. ANY help would be appreciated. Thanks

 

Turn the idle back up

 

you have a 215 pump right? How many soft and hard clicks did this kid do on your pump? Did he take the shims out or leave them in?

Sounds like a GSK problem

incase you missed this post the first time