If you have a vacuum on the hose going into the air cleaner or on the oil fill tube (enough to hold a piece of paper) you should be fine. Remember your looking for 1” of vacuum. Is your side block breather blocked off? Looks good to me as long as the is a oil deflector under the valley cover..

56 Vic, B'Ville 200 MPH Club Member, So Cal.

So it's PCV from back of valley cover to back of Carb.
Base of Air Cleaner cover to Oil Fill Cap.



1959 Edsel Ranger, 1916 Ford "speedster"
"I may not be a rich man, but I can give you a million dollars' worth of bad publicity."

1959 Edsel Ranger, 1916 Ford "speedster"
"I may not be a rich man, but I can give you a million dollars' worth of bad publicity."

That’s a crankcase evacuation system which is powered by exhaust flow in the header collector.  In lieu of using a four or five stage dry sump oil pump, I’m using the exhaust the help draw a vacuum on the crankcase.  My roadster is only using a three stage oil pump and that does not generate adequate  negative pressure to aid in the performance.  The crankcase is physically sealed up so there is no air movement into the engine thus aiding the removal of whatever air is present there.  There is a check valve on each header to keep any positive exhaust pressure out of the crankcase which could happen at low rpm without the check valves.  With all that being said, these systems work well on race cars where there is no back pressure in the exhaust being present. 
 
You don’t see the exhaust evacuation systems on street cars due to an accumulation of oil building up in the mufflers, insufficient vacuum being generated either from the rpm being too low, and/or back pressure in the exhaust system preventing a vacuum from being generated.  Engine oil making its way through the exhaust side check valves and slowly stopping up the mufflers would be at the top of the list for why these systems are not used on street cars.

Lorena, Texas (South of Waco)

On a related note, but probably one that leans towards performance - Ted, can you explain a little about what looked to be an "exhaust vacuum" set up that you had on your Y Block in the altered T bucket? I do wonder if there is any benefit to a street car adapting this kind of configuration to help scavenge the block of blowby... As I recall you had this setup on both headers and there was a line that ran to a baffled cap at the rear of each valve cover?



Daniel Jessup

Lancaster, California

aka "The Hot Rod Reverend"
check out the 1955 Ford Fairlane build at www.hotrodreverend.com

Here are pictures of the Mummert aluminum valley cover for comparison purposes.
 

 

Lorena, Texas (South of Waco)

The valley cover is an aluminum one with a breather hole and baffled rear breather box from John Mummert.

Shown is a BLUE THUNDER. Is it anything alike?

____________________________

Sorry, still waiting on the vehicles.

Some further info.  The valley cover is an aluminum one with a breather hole and baffled rear breather box from John Mummert.

The PCV valve is one that fits the 289, 302, 351 engines. 

The 292 is a rebuild long block so no PCV or draft tube came with it.    

1959 Edsel Ranger, 1916 Ford "speedster"
"I may not be a rich man, but I can give you a million dollars' worth of bad publicity."

Drilling a hole in that valley cover, adding a grommet for the PCV valve without welding in a defector/ baffle under it would defiantly cause oil suck into the intake. There is a rubber grommet used on aftermarket rocker covers, normally SBC’s, will really help. I installed one on a friends sons engine 20 years ago with success. The rocker cover did not have a baffle. 

56 Vic, B'Ville 200 MPH Club Member, So Cal.