soarestransam

Ok so I noticed that the tpi has two Pcv valves I'm installing pre 86 edelbrock valve covers an it only has one port for the Pcv an one big one for the oil fill plug is it ok to just use one Pcv or do I need two???

Tuned Performance

iTrader: (92)

you will need a breather cap for the fill and the provision for the pcv on the other head and cap the tb

Apeiron

The TPI has one PCV valve.

soarestransam

Hmmmm weird cause when i disassembled my stock 350 today to pull the motor out i took two pcv valves off one that goes into the intake manifold an one that was hooked up to the throttle body

vetteoz

iTrader: (13)

So if you did someone has ( wrongly ) put one in the pass side cover;

Apeiron

One is a PCV valve, one is an elbow, unless someone has done something dumb.

soarestransam

Yea sO i think it was right do i need the elbow or could i just block it off

Apeiron

You need the elbow, or at least something on that side to let clean air in. The factory setup is the cleanest possible way to do it.

soarestransam

Ok so ill just get a breather an see if that will work i then have to block it off from the throttle body

Apeiron

And clean your valvecover on a regular basis.

vetteoz

iTrader: (13)

No can do.
On your MAF car , PCV air must come from the TB port ( metered);
otherwise you just have a big air leak @ idle

soarestransam

Ok so what you are saying is to get a breather woth a vac port to hook up to the throttle body an also use that as a oil fill this will be on the passenger side of the motor an for the drivers side it will be the pcv valve hooked up to manifold vac port right under the fuel rail on the drivers side of the intake manifold