So tonight I hooked up the timing light to cylinder 8s plug wire and brought the rpm up to 2500 rpm and sure enough you can see the break in the light from the missfire on cylinder 8.
So there is definitely something going on with cylinder 8.
I’m going to go around all the other 7 plug wires and do the same thing just to make sure there isn’t a miss fire on any of the other cylinders but I’ll bet money it’s just cylinder 8 cause like I said every time I pull the plug from cylinder 8 it also looks semi fouled with fuel and looks like it’s struggling to fire compared to the other 7 plugs.
So what are your guesses? Compression test reveals 155 on all cylinders including cylinder 8.
I’m back to suspecting a broken or weak valve spring again.