Due to problems too deep to go into here, I am converting my 283 to the valve covers with the holes for oil filler cap and PCV hose off the carb. Do they make a blank or a plug to block the hole in the front of the intake manifold once I take out the old oil filler tube and cap?
You could use the old oil fill cap as a plug (and it does a better job of accepting oil than the baffles beneath the oil fill cap does in getting oil into the engine). But if you want it gone there are freeze plugs (proper name Welch plug) that can plug the hole. Usually the PCV vale from 1963 up to 1968 was located in the oil fill tube. Also don't forget to plug (cap off with a rubber cap) the hole in the back of the block to keep insects out of your engine.
Thanks Big Dave. I just discovered another problem. The oil filler stem is also the place where the Rochester 2G's return spring hooks on. If I take out the filler tube and cap it off, where would I hook the carb's return spring?
The PCV hole in the back of the intake manifold is already blocked off (looks like a freeze plug, kinda).
Instead of pulling on the top of the throttle arm you can attach the spring to the bottom and pull back. Will probably need a stronger spring though as the bottom half of the throttle arm isn't as long.