well i put the 3.1pulley on and im seeing 7.5-8lbs of boost on my boost gauge and on my 2.75 i was seeing 10.5-11lbs of boost. see if my timing go's up and do a better time.

 

You are going to need tune for the 3.1 pulley. Probably add more timing and adjust the fueling. 3-4 psi needs a different amount of fuel and timing. Running it with 3.1 pulley with the 2.75 tune and 8 degrees of timing, the truck is probably going to feel like crap. Porbably be super rich.

 

well its ok cuz im going to nelson next thursday to retune with the 2.75 and the Speed Density Tune with the meth kit also on dyno

 

Are you using any scanning software?How do you know how much timing you are running?The meth system will allow you to safely run more timing,but you'll need to change your timing tables to allow more boost.If you use an aggessive tune,you'll need to monitor for KR to keep from damaging your motor.

 

i have the nelson tune. thats what it read on the software