Heres the situation i got goin on

I have had this miss in my 83 f150 300I6, single barrel , for quite some time now, i don't drive it every day so it isn't utmost importance, but i need help bad. I tried replacing the cap, rotor, plugs, wires, module (duraspark), carb...and i am lost, so i figured i would see maybe if there was a suspect cylinder by removing plug wires. Take number 3 off, doesn't seem any different, so i try 5, wow wierd still seems the same, so i take off number 6 wire, little bit different, but not 3 cylinders down different. so i take one more off, the thing still runs and responds to throttle, but is finally clearly missing 4 out of 6 cylinder....i am scared to pull them all can anyone help with this demon beast....I am going to do a compression test somtime today, so i'll report back with some results on that

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okay heres the compression test and plug visuals

1- 125 carboned up on one side, normal on other (yeah wierd i know, also oiled up)

2- 130 plug normal

3- 140 plug looked abnormally normal (brand new looking)

4- 135 really carboned up, oiled up, no external oil leak....rings??

5-135 slighly carbon fouled

6- 130 plug normal


other than 1 being slighlt low i don't think its a major cause for concern...

 

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