Here are the cam specs 219/229 .550/.550 lsa 114 I would be putting this cam in to my whipple charged 2009 Sierra Denali the whipple has a 3" pulley on it as for other mods to the truck are cai, headers, catback and that is it how do you guys think rhis cam will do

 

3" pulley? As in 3.000"? What boost are you running?! 15psi? That's some serious boost for a stock 6.2 and no meth.

 

I wouldn't pick that cam for a blown 6.2.

 

Seems really small to me

 

I'd go bigger split, more lift.

 

Does anyone know what size the stock camwould be in a 2009 denali 6.2 what size cam should you run in a whipple charged engine boostbia about 10.5 to 11 pounds why would think its at 15 pounds

 

Also plan on running 1.85 yella terra rocker arm which would put in to.58x range of lift

 

What all do you have done to it already? If you can post up a picture of your engine bay, you have the Whipple with the whipple intercooler right? The reason he thought your boost would be higher is because if you have a On Manifold Whipple, with a 3.0" pulley on a stock 6.2 your boost should be higher.

 

I have the whipple that bolts down to the top engine in place of the intake manifold

 

3.625 pulley equals about 5.5 to6 pounds on 6.2 for each smaller increments of .125 equals about a pound so 3" pulley works out to be about 5 pounds more