LS7 with Peterson breather tank routing issue
 

Update** Speedtech says the instructions below are incorrect, as far as port 3...

What is the correct routing for the Peterson LS7 breather tank to the PCV system?

I've searched and have not found an exact answer. I have a LS7 in my 69 camaro. I am using peterson oil/breather tanks. The car seems to run good(only driven it one mile) but I am getting manifold absolute pressure high/range codes. After looking at the way the lines from the breather tank were routed I think I found the problem. They had the top port on the breather tank (2) to the Valley cover port... And the bottom port (3) was to the front passenger port on the manifold right above the valley port...

I have same system wich I bought many years ago. My car is still on project stage so I cant say anything on codes. How do you measure correct oil level?

I talked to Peterson and they said fill the system till the tank is 3/4 full while running.

I bought 3 gallons of oil. I used a welding rod to measure how deep the tank is, marked the rod where the top of the tank was, then measured where 3/4 full of that volume was on the rod. I used an oil primer to prime the motor since it was a new crate motor. You can also pull the coil pack connectors and turn motor over to prime.

Pulling the coil pack connectors only to prime is not a good idea as you are still pulsing fuel. Disconnect power to the ECM then crank until you have oil pressure. Power the ECM and start engine.

Well Seems like my question caused Speedtech to revise their ATS LS7 oil pan instructions. Just want to say thank you to Blake Foster for helping me out. Thank goodness I do not have to re route all my oiling system.

The only difference in my system is that my oil cooler runs on the oil filter side like the stock LS7 pan does.

Thank you and Speed tech for the help. Have you considered extra catch cans or is thete any use with petersen breather can?

I would check oil level like Gotham does. Welding rod while running.

My breather was also setup like they show.... outside the car.