Nelson Tune.... Round2

[GMCtrk]

Uhh...of course it's not the tune. You said in the other thread it sounded like something rattling around in the engine. It sounds like you have a hole in one of your pistons or a valve bouncing around in there.

[GenIII_4Ever]

Uhh...of course it's not the tune. You said in the other thread it sounded like something rattling around in the engine. It sounds like you have a hole in one of your pistons or a valve bouncing around in there.

Truck runs better now swaped out the burnt plugs. And took it on a 450mile round trip last week. Ran pretty good but still is a little weaker than normal on the low end.

[farmtruc]

...but still is a little weaker than normal on the low end.

Probably because your truck doesn't have the supercharger on there anymore.