[JK McDonald]

Hey 924, While you await the return of your computers, as others have suggested you might also perform a "Leak Down Test" to help better determine if you are dealing with a compression issue. Harbor Freight has a leak down gauge kit for around $40 or so. Once you pressurize a cylinder at TDC with 100 Psi, listen for escaping air at the throttle intake (intake valve leak), exhaust tail pipe (exhaust valve leak), with the oil fill cap removed (piston ring leak) and finally with the coolant tank cap off - bubbles, a possible head gasket. The "Leak Down Test" will additionally let you compare the reference air pressure applied to the inlet side of the test manifold to the air pressure being held in the cylinder.

Since you have determined that the spark is OK, if your engine passes this static "Leak Down Test", you'll at least know you are probably chasing a fuel related problem.

Just as some target information - I checked my notes on the compression numbers for a reasonably well running early (185K miles) CIS euro-engine. They were 170, 180, 185, 165, 185, 165, 160, 170. Additionally - a "Leak Down Test" indicated only an avg of 9-11% air loss out of the cylinders. Although all the compression numbers should have been within about 10% of each other - the car still ran out fine.

Please Keep Us Posted - Michael