My original L78 burned a quart every 500 miles. All of the honing marks were still there after 75,000 miles when it died. They say it's because of too much nickle. Doesn't that cause the iron to move toward being steel?
Anyway, it sounds like you are using an atmospheric vent on your valve cover instead of running the crankcase inlet to the air cleaner. Either way, a quick and dirty test,
of mechanical integrity is to expose the vent side to the atmosphere, then pull the PCV valve and look for escaping fumes. There should be less than a bong hit. Moderators, go easy, we legalized the stuff.
The base of your carb for the hose is correct.
Also insure that the valve is on the drivers side valve cover. If swapped it won't do its job because of crankshaft rotation.
Most of us would never remove the system. It helps to remove water and other fumes that ages your engine before its time, not to mention the smell and sludge.
Oh, another test is to leave the valve in place and with the engine running put the palm of your hand over the passenger side vent. Without a race-vacuum pump there should still be enough suction to hold your hand and leave a welt. That is really cool, especially at cruise-ins.
One owner 69 Camaro,(yep, bought it new
RS SS Hugger Orange, L88, 4:10's tru-tack posi, ducted hood, Endura, spoilers.
TH400 (CX) with Coan 8" converter, GV-OD, 8 track still on console and best et 10.495,
128.79mph 1.428 60'
All with 1960's stuff. (except tires and converter)
+ MT Super Scavenger headers & 3" full exhaust with X pipe. 3700 lbs. with me in it.
1000cfm AED and HD Harold-Lunati SR, 725 lift with shaft rockers too.