I HAVE A 3.6 PULLEY NOW, SHOULD I GET A 3.4 OR A 3.2 WANA RUN AROUND 9 POUNDS OF BOOST HAVE THE 6.0 WITH A 2300.When i first flooor it it goes low 8psi but when i hold it down its right at 7.3.Anyone have a pulley i can buy!!!AFR is at 11.4 11.6

 

Could be a little belt slipping

 

Try a gator belt

 

Is your crank pinned? What is your intake setup? What is your intake Diameter? What Throttlebody?

 

I'd guess the drop in boost would be caused by belt slip, crank pulley slip, or too small of an intake tract.

 

crank is pinned,belt dont slip that i know of no noises seems consistant,just looses little boost but was curious if this was normal!!!!!!MY lower intake on the supercharger wasnt ported ive read that the holes are real small wondering if any power would be gained...I also have stock throttle body was gona get a VMAX spiral ported one is this a good choice or a waste of money..I have a airaid intake tube

 

Which air filter box are you running?

 

As for porting, what heads do you have? Cathedral or L92 ports. If L92 then I believe there is some room for gains, on the Cathedral there is very little porting you can do on the lower manifold. I did mine this winter and it required very little to make it true.

 

im running the STOCK airbox w k@n filter with airaid intake tube!!!Is there sumthing i should do the air box or keep alone.I have the vortec max 6.0 big heads.

 

I'd open up the bottom of the box somehow. You need to let more air in, I'd bet that's part of your problem.