alright...ive installed my MBC and ran a vaccum line to the intake manifold and into the wastegate. The car idles rough..like it always has and when i hit about 4000 when i would normally boost...it just bogs down and dies. Ive checked for boost leaks, the turbo is brand new...

any ideas on whats wrong?

 

Your running the MBC to the intake manifold? Im assuming this was not a problem before you installed the MBC therefore you either have it hooked up wrong, or you forgot to put a vaccum line back on

 

Can you post a pic how its hooked up?

 

Now my boost controller is hooked up and im getting boost but after i boost for a while the car will start sputtering again. I boosted today through all 5 gears...turned around and on the way back in 5th gear it started sputtering and i had to stop. Then i can stop for about 30 seconds and it will start running fine again.

It does this sometimes even when im not boosting or havent boosted at all. I drove it this morning and it ran fine and on the way home it bogged down and i stopped and drove the rest of the way. Any ideas