I know there are a couple of guys running a whipple HO, hot rod cams, and long tubes. I wanted to know how much boost you lost and where you HP and TQ numbers are at. My tuner says that I will lose around 2-3 psi.

 

A lose from what? What does your tuner say you're losing it to? Hard to help without knowing what your set up is, and what you're going to, or what is changing.

 

I have long tube headers and hot rod cams on the car now. I am in the middle of installing a whipple HO kit. I will be going to Chris Rose to get my dyno tune and just want to know what to expect

 

At 2500 feet above sea level and long tube headers I run 11 PSI on a pulley that should boost to 12 PSI, at sea level on a stock motor.

 

Did you put it on a dyno? and how do you like the 3.73's? I currently have 4.10s and am thinking about swapping them out for 3.73's

 

I cant tell you from experience, but I have 4.10s now and with high horsepower like you seem to have it will probably be a bitch hooking up lol