Hey guys,

Thought I'd share this with you. I'm not sure how everyone else is stacking up to this, but I thought it was very impressive.
A couple of weeks ago, I installed a cam/springs/rods and an 02 pcm in my father in laws 99 GMC 5.3L ec. It turned out great, we can't wait to take it to the track!

Well, on the way to Hi Way auto, we filled up just down the road from my house, on the way there, we hammered it many, many times and averaged about 85mph.
On the way back, we were carrying the engine, and took it easy all the way home.
The total trip was 415 miles, we made the trip on one tank of gas. There is no doubt in my mind, we could have went 450miles / tank if we took it easy on the way up there. About 7 miles before we got home, the fuel light went off. So, we weren't completely empty on the way back.

Anyone else have an experience like that.

The 02 pcm and really the cam woke up the truck very nicely.

later,

allen