the truck acts like it has a miss slighty at idle and when starting to drive away at first.........i don't see what it could be from? we removed one plug when installing the LT's but it was fine when we put it back in. I checked all the plug caps and they all seem to be on good. Could it just be the tune and the truck running rich/lean?

 

did a wire hit the headers and melt?

 

wires aren't touching

 

It's very easy to bump a spark plug during the install, and crack a porcelain. It's nothing you would see, but will make it misfire under different conditions. I say, if you notice a misfire right after a header install, replace all the spark plugs.

 

. . . .

 

Cracked a plug when i installed the LTs on my camaro also would load up an give a loud pop when driven or could be with your O2 sensors

 

pulled some Ignition adv numbers from my aeroforce. If this tells anything?

at startup cold: 2, 5 1, 6, 7, 10, 11.5, 4.5, 8, 3, 0, 2.5, 9.5, 7.5, 13.5

then after it started to warm up it went to 11, 13, 14.5, 19, 12, 13-23 range and 28 and 25.

at warm up it went in the 15-18 range, 21, 25, 26, 28.5, 30, 31, and stayed in the upper 20's and into the 30-31 range alittle bit.

 

is it just me or if i cracked a spark plug wouldn't it being popping as well?

 

your such a worry wart.... just change the plugs and get it retuned