Quote:
Originally Posted by 40 Deluxe
It might be worthwhile to copy most '70's or so Ford systems: That is, fresh air into the engine through one valve cover, then fumes out the other valve cover through the PCV valve into the intake manifold (the system on your car will leave stagnant fumes/condensation under your valve covers, allowing for possible sludge and rust).
Do those nice valve covers have pads to drill holes to add rubber grommets for the PCV valve and fresh air inlet? Or hide them on the back sides? If you do this, you will need to block the oil fill tube with a solid cap so no air flows through. Also, OEM PCV hoses were larger than on your car for better flow.
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What you are saying is correct in regard to design (1965 up), but you will lose the original appearance of the OEM install.
The 1960 up FYB PCV design is adequate (IMO) for the engine. There is a baffle on the underneath of the valley pan to direct air flow to the cylinder heads. You would also have to fabricate baffles for the rocker covers with the later design.
If the late OEM System is installed correctly, evacuation should be more than adequate, again IMO.