78 GTS US oil Separator behavior when driven hard.

This is really long but I'm looking for some advice from those who have more experience than I do with running the 308 hard when cornering. I've been on a couple of group drives and really pushed the car to keep up. Most of the cars are newer with considerably more hp and wider tires. There were long stretches' of very winding road. Rpm was between 67 and 77 hundred and constant up and down shifting for what seemed like forever. Many of the turns required almost full lock to get around. Also lots of full throttle straight line acceleration bang shifting at 77 hundred (like a drag race) to fairly high speeds. It would be nice to have an extra 100 hp on tap and better tires. I'm running 205 / 70 14 on front and 225 / 60 14 on the rear. Stock suspension lowered two inches in front.
What's happening is that once in a while the car following me sees a large puff of oil smoke from the exhaust and after the car sits for a couple of hours there is oil smoke when I start it. Its only happened twice and both times it was after a very hard drive. It's like oil running down the valve guides but I know the seals are good.
The engine is in pretty good shape considering it has about 120 k miles on it. Good compression and leak down and it burns very little oil.
I've noticed a couple of times in the past there is lite trace of oil in the air box coming from the oil separator breather but after this last drive I decided to check and found a heavy oil film on both the bottom and top in the air box, more than I've ever seen before but I don't think I've ever driven it as hard as on this drive.
I pulled the oil separator and it seems fine. There apparently is a baffle in it as I can't stick a flexible implement through it.
I blew through the line that goes from the separator to the block (pan) and it is not blocked but there was some back pressure and I heard a gurgling sound like its entering the pan below the oil level.
The oil level is about 1/4 to 1/3 inch above max both hot, after a few minuets to let the oil drain back into the pan and cold. It has a Baldwin filter on it and they hold oil indefinitely so there is no change from hot to cold.
I run it a little over full as I've had the oil pressure light come on when I run it half way between max and min when cornering hard.
I wonder if the occasional smoke while running hard and after sitting is oil misting into the carbs. The air box top directedly over the carbs is clean probably due to stand off but the rest of it has a heavy oil film.
Would running it a quart to a quart and 1/2 overfull cause this.(possible foaming)
I'm running 20 -50 Castrol Synthetic blend with a quart of Lucas oil stabilizer.

Thanks for your time.
Barry

 

Thanks guys. I'm aware of the extra baffle as well as the threads on the low oil pressure lite on continuous hard cornering. I do think that overfilling with oil would cause foaming, assuming the crank hits the oil, and more pressure in the crank case along with excessive oil in the cam covers which in turn could overwhelm the oil separator and pump oil mist into the air box causing the oil smoke. There is no oil residue on the carbs but there is a lot of gas particulate standoff at high revs which should dissolve it. It might also explain the smoke on start up as excessive oil in the cam covers on shutdown could possibility get past the valve guide seals. I said before I know their OK but in thinking about it I only changed the 8 on the rear head when I replaced the valves so the front ones could be loose. I know the valve guides on the rear head are a little worn. Not excessive but not perfect so it holds the front ones are the same. The only problem with the valve seals passing oil is that it doesn't smoke at all on long down hill coasts with it in gear when it has lots of vacuum. My experience has been if the valve seals are leaking there will be a big puff of oil smoke after a long down hill coast when you hit the gas again.
I'll look into the extra baffle and also lower the oil level a bit.
I'm not sure if the oil separator drain back should be above or below the oil level or if it even makes any differece.
I'm probably over thinking this but am considering tracking the car and want to understand the oiling system.

Thanks again
Barry