Hey all, so I am road testing a 96 LT1 but it’s carb swapped with an Sbc distributor and it occurred to me I should be running a PCV system. I plan on running the PCV valve in the DS valve cover and running it to the ported side of the carb, and an open element style breather on the PS valve cover. Does this sound correct?
Carb 350 PCV routing
- Thread starter Baker7888
- Start date
People have different opinions on this subject.
My PCV is hooked to the port on the back of the Holley carb. Manifold vac goes to the booster, modulator/vacuum for the AC ball.
Ive read that depending on the intake hooking the PCV to the manifold port can possibly cause fouling of the #8 plug. Theres some info here.
www.chevelles.com
My PCV is hooked to the port on the back of the Holley carb. Manifold vac goes to the booster, modulator/vacuum for the AC ball.
Ive read that depending on the intake hooking the PCV to the manifold port can possibly cause fouling of the #8 plug. Theres some info here.
PCV into manifold vacuum?
www.chevelles.com
Thats where I would put it but like I said, some folks have a different opinion.
People have different opinions on this subject.
My PCV is hooked to the port on the back of the Holley carb. Manifold vac goes to the booster, modulator/vacuum for the AC ball.
Ive read that depending on the intake hooking the PCV to the manifold port can possibly cause fouling of the #8 plug. Theres some info here.
PCV into manifold vacuum?
You're both right, Both those locations are below the throttle plates and that provides manifold vacuum be it in the front of a Holley or the back of a Holley it's the same source.on your edelbrock it's the larger port on the front.
Sounds like a load of BS to me. The vacuum draws air in at part throttle through the PCV valve which tries to create a vacuum within the crankcase which helps with ring seal and WOT that airflow reverses and the crankcase blowby exhales out of the breather. If you're fouling plugs something else is amiss, like maybe the valve covers don't have shrouds to prevent oil from getting sucked into the motor through the PCV.
I've never heard of this^ but I'm basing the vac hose routing on the fact that the both carb manufacturers dictate manifold sources for the crankcase evac.it pulls@ all times except under full acceleration which is what you want
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