Originally Posted by 00sport
sorry bout that haha, i just know its a vacuum problem cause the thing sounds like a damn jet when it does it. i was trhinking about the plenum gasket, possibly the throttle body gasket?
Oh it certainly could be the TB gasket but it's more likely the plenum or a broken vacuum line. Try shining some light down into the intake manifold and look for any oil on the bottom of the belly pan. Be careful driving because if your vacuum is too low you will have braking problems.