Boost problem?

[iwrecksrt10s666]

Hey everyone,
I got a problem with my lightning. I have a 6# lower and 2# upper + the idler pulley relocater to reduce belt slippage but the truck is only making 9#'s of boost. my belt is a little loose and i was told to start with tht but i couldn't believe tht that was making me lose up to 6#'s of boost. any one have this problem?:shrug:

 

[01yellercobra]

Depending on how loose it is, the belt can cause you to loose a lot of boost. Just swapping from a belt that was a year old to a brand new one gave me 2 more pounds of boost. And my old one wasn't loose. Start with the easy stuff.