Hey guys. been out working on my 83 Ram 50 for the last 8 hours.

Basic story, last week went to change the spark plugs to get ready for teh oh so fun CA smog. Only to have the plug in #2 snap off in the head

My truck having the 2.6 and jet valves with tiny cracks between the valves like just about every one of those heads have, I decide to slap on the brand new, non-jet valve head I have. Spent all day swapping over the valves and springs and got everything all back together.

Far as i can tell all the timing marks line up, I have spark, I seem to have compression (when I crank it by "hand" I can feel when the pistons are compressing the air, and hear the air trying to push out any small opening it can on the cold engine) but it wont fire. Ill get a few cranks out of it, it will sound like its about to fire, then the motor struggles to turn, like its pushing against some strong compression or something but no fire.