Hi all, gettin some blue smoke and pretty sure its stem seals, was gonna re build the head, anyone have any opinions on getting the head ported and poloished, does it make much difference??? Also should i stick with standard head gskt or get another, just not sure on depth 0.6, 1.0, 1.2mm The car has s/s mani, de cat, fmic, jam ecu, colder plugs and will be getting hybrid ct9 very soon Thanks for any help/advice Raymond