New Cam ...more vacuum = higher oil consumption ?

[Big Sugar]

Hey Folks

Swapped my cam out last spring to a newer Lunati 603 from a Mp. .509

My vacuum went fron below 10" at idle to 15"+ at idle.

The 440 is running great but this year the engine has been going thru oil !
ive done a lot more driving at higher RPMs this year 31-3500 rpm just because the power band is so smooth in that range where as before I tended to stay in the 28-3100 rpm range.
Im using about a quart per tank , the plugs were nice last time I checked but as the weather got colder in the fall the car became a little stinkier at the exhaust.  no leaks and no blue smoke ?
Could the higher rpm and higher vacuum be causing the higher oil loss ?
Im running a six pack setup with a pcv and oil vapor line to the breather, have noticed a bit more oil seeping around the six pack breather trim, at the base .

Ron

[firefighter3931]

Higher vacuum should not be causing increased oil consumption...at least not if it's a ring problem. Higher vacuum should be helping with ring seal...not hurting it.  

Might be time for a wet/dry compression test fallowed by a leakdown.  

Have a look again at the plugs for signs of oil burning. It could be coming in through the valve seal(s) or an intake port(s).  

I'd also look at the PCV valve....it could be defective.


Ron

[c00nhunterjoe]

Are the valv covers baffled? If not, could be sucking it through the pcv