pcv and thermostats for street strip cars ?

AdamR said
Pan E vacs just dont like mufflers from what I have been told from peopl who have tried it. Flowmaster seem to be the worse to use with a an e vac set up.

Please excuse my ignorance Adam. But I don't understand why mufflers would effect the evac. It still creates a vacuum right? Do the baffles mess it up? If thats the case, will a straight through muffler design work?