I'm running an Edelbrock Torquer intake ans a Holley 4150 750 carb. There are no provisions for a PCV valve in the aftermarket valve covers or air cleaner. There is a vacuum hose from the manifold to a "T" connection. One side of the "T" goes to the back of the carb and the other goes to the power brake booster. Is this correct? I have the original intake which had a fitting that went into a hose with a PCV valve at the end of it that I assume went into the valve cover.
Most of the Pontiac motors I have seen have the PCV valve grommet in the valley pan (under the intake manifold).
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI
The grommet is at the front-passenger side of the valley pan, under the intake manifold. (You should be able to get to it without removing the manifold.) You probably should replace it before you try to shove the PCV valve back into it. (Keep it from turning into little rubber parts inside the engine.)
OK, you guys are correct and I found the PCV grommet where you described. The hose then goes to the back of the engine through a "T" to the power brake booster and the large vacuum port on the back of the carb. Is this correct?
Most of the stock arrangements I've seen put it at the front of the manifold coming off a 90 degree fitting on the #1 runner. (I think it is the #1 runner.)
The problem we have here is it's an aftermarket setup.
I would suggest tapping a manifold vacuum fitting into an intake manifold for the PCV (like the factory did) and run the brake booster off the vacuum fitting at the base of the carb. I would do this to prevent too little vacuum for the power booster due to that one nipple pulling for BOTH the booster and the PCV and 2) you do NOT want to be pulling oil fumes into your carb plate.
My Edelbrock intake manifold on my Ford 302 has flat round areas on the runners for drilling and tapping holes. I don't use them because my Ford Motorsports air cleaner has a provision for a PCV hose.
P.S. Everything I have read about Pontiac engines says DON'T use a Torquer manifold. The Torquer's work best at a power ban too high for most Pontiac motors.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI
D'Oh! I suppose I could have finished my thoughts and made the same suggestion! I have a few Offy manifolds with the same bosses for fittings, as well as a few installed by their factory. I have not run a Torker, so I didn't realize they weren't plumbed for vacuum!
I learned something new today!
Q
PS: Ditto on the use of a Torker on the street. They are not the best choice for a street motor.
