[cscottfergus]

Ok update

Thank you to everyone for your thoughtful responses.

I checked a few things

No choke on holley 650
plug wires mallory pro-sidewinder

AC Rapid-fire # 7 25171346 on box , old plugs saved from last change are AC R46S , these are not on car.

pulled two plugs no 1 and no 5 both wet and black

cylinder pressure no 1 is 170 psi no 5 is 180 psi


oil pressure (professional hand held oil pressure gauge)

not running but cranking 60 psi cold

idle 1000 rpm (cold) 87 psi hot 75 psi
1500 rpm 92 psi fluctuating
2000 rpm 92 psi steady
2500 rpm 94 steady
3000 rmpm 100 psi steady


timing more of a mystery.

Using stock dampener with timing mark scribed on it.
I cant remember why but to set timing had to mark around dampener with white marks to check timing, stock timing mark is way below ) at rest . I forget why setting the timing with the mark on the dampener does not work at factory specs. I think it hads to due with the cam maybe. I has been to long and i forget. I am sure this is common though and someone can remind me why this is so.

ok from the timing mark on the dampener I had 3 painted white marks going clockwise. one about 3/4" one at 1 1/4", 1 at 1 3/4 " I do not remmber what advance these represent. I believe I marked them to check total adavnce at speed. I forget the conversion to get them to degrees could calc if had diameter of dampener. Ill try to get that.

timing light said idle was 1280 rpm after warmed up 0 btdc was about 2" from timing mark on dampener (degrees?) 1500 was about the same , 2000 was abt 2 1/4 ", seemed to be all in by 2500 was about 2.5" around from mark on dampener.

clearly I need a refresher on timing

any ideas what those marks convert to on degrees and any other comments on this information?