I have a holley tbi with an extra vacuum for the pcv valve and I need a spot that generates enough vacuum to run my power brakes off of. I'm not running a pcv valve anymore because of the breather on the new motor's valve covers and i don't want to. The pcv vacuum off the tbi is pretty big as far as vacuum lines go but not as big as the stock vacuum spot which comes off the A.I.R. system for the brakes. I can't hook it up to the stock vacuum (because i nolonger have an A.I.R. system, dumped it when i put headers on) so i need to know if the pcv port on the holley tbi will generate enough vacuum to run the brakes.