Not wanting to replace the cover i ordered the pcv valve replacement from ecs.
Crankcase vacuum tester.
Vacuum pressure testers cam correct crankcase vacuum pressure tester.
The morning i went out to replace the pcv.
8milelake fuel pump and vacuum tester gauge leak carburetor pressure diagnostics 422.
After my local mechanic did a smoke test and checked the vacuum lines he suggested that the issue might be the pcv valve in the cover.
Price 19.
He verified this by doing the above linked test which showed no crankcase vacuum at idle.
There is some argument about whether to do vac first and pressure second or pressure first and vac second.
Always gently rotate the crank in each direction to disturb the seal lips and verify that they hold under vacuum.
Next pull a vacuum on the crankcase and see if that holds.