I'd probably go twins rather than single.
Check for oil/water in wells. Also, check LTFTs are 0%, and the MAF reads correctly (about 14-15kg/hr for 3.0/3.2l v6)
thanks
i used bosch super 4 (4 electrode) in my carltons with no issues in the past
they'd be about £21 for the 6 for GM branded
plugs x 6 LTFT 3 at 1% 1 and the last bouncing 4 to 6 % IIRC
i'll need to go back and look at the MAF because i can't remember
front lambdas switching ,rears lean
To be honest , i've been driving like a girl / coffin dodger, as i'm getting use to the omega still
no leaks from the cam housing covers
not got to the wells yet as i will order what i need first
3 of the 4 breather pipe clips (at the back/top on the ecotec plastic breather cover thingey) are original GM factory crimp clamps so i assume the ram and breathers /plenums have never been off (i intend to replace these when apart with fuel line clamps
thanks again , all a bit new to me compared to the 8 and 16 valve engines