Well I installed the hole and fitting in the plenum of the intake manifold. Now some more discussion.
The engine sits almost level front to back. So, the right rear valvecover filler hole shoildn't be any more
oil challenged than the left front. I have breathers with top grommeted holes for both valvecovers They can either have PCV valves or elbows. I currently have a PSE breather stack with the strainer basket in the center rear of the intake manifold. I have found a plain cover plate and a cover with strainer and PCV valve for that position. The right front manifold
oil filler tube currently has the usual breather cap. I have a closed cap with a hose nipple for that position that resembles the breather cap I have planed for the right rear valvecover position. Problem is the cap is a little larger than the open breather cap I have been using. The filler tube is short and lower than the valvecover and difficult to actually pore
oil into.
Any way, if oil drainback is an issue wouldn't oil draining down from the rockers be helped if the PCV was removed at the rear of the intake and vented inward at the valvecovers? what I,m considering is tying the valvecovers together with the filtered fresh air source being inside my aircleaner as they are now but without the PCV valves that are now in the grommets that are in the valvecovers. Air in the valvecovers and PCV being taken out the center rear of the intake manifold.
Is the rear manifold PCV better than the fresh air in one valvecover and PCV out the other valvecover? Do I need to limit the fresh air intake and pull a partial vacume?