Engine Troubles...

[RHGuyettejr]

So i just went out and pulled one plug at a time to see what cylinders are firing, it started out great as when plugs 2,4 &6 where pulled the motor idled down, but plug 8 was pulled with no change, to my surprise plugs 1,3,5 &7 revealed no change as well? now I have driven this truck and it has nuts, I never suspected that it was missing on so many cylinders, so I checked it again to make myself feel better, still no change. However spark was getting to the #1 cylinder because I could hear it arc when I put the wire close to the plug, I could not see it though. Cylinder 3 seemed to actually make the motor run better while unplugged, and i could only hear it arc maybe every 3 cycles to the plug when I put it close. cylinders 5 & 7 I could not hear for sure, and 8 I i did not think to do this test on, but it is easy enough. The firing order is correct as it has been checked over twice to verify. Obviously the spark not getting to the plug is either a cap, condenser, or points issue, but what about the others that where getting spark? Guess i should start with making sure the dist. is set right points and dwell, then move on to compression / vacuum tests after that.

Thanks guys