I recently bought a 01 silverado with a 4.8. Seller told me it just had a flow master exhaust. I just recently added a k&n intake. The truck felt fast before the intake. Is there anything else that the truck could have? I hear no lope so I don't think it could be a cam. Made a quick vid of what I'm talking about. Truck only has 120k miles and has been babied and well taken care of.

 

Try taking a video without spinning.

 

I spin under 40mph. My tires aren't bald so I don't know what to do. Didn't think I would need nitto tires with just an exhaust and intake.

 

Axle ratio?

 

Gears? 3.42s I believe. I have the gu6 code.

 

Hmm. Can you get a video that shows the tach and speedometer at the same time?

Judging by how fast the speedo moves I'm kinda suspicious that it may be calibrated for larger tires.

 

Ill take a better vid tomorrow showing both.

 

stall converter? what does it stall to?

 

You just lucked out and found a beast begging for teh 26's big dawg!