A little more info on this. I pulled all the plugs and did a compression test. All cylinders are within 10 lbs. High was 180, low was 170. All the plugs looked good except #8 which was black. Not oily, but what looks like carbon.
Is my next step to pull the intake manifold? Or is there a way to test of a leak without doing this?
__________________
'68 convert, 5.0 GT-40 Crate motor, C-4, Tri-Y headers, 3.25 rear gears
|