I'm guessing 1 and 2 b/c of the fact the air is being force to the back of the intake?

Anyone have input? Looking for the leanest 2 cylinders under boost to put an egt gauge on.

 

From what I have seen, 7 and 8 run lean. Like you said, the air is forced to the back of the intake. This causes the back cylinders to get more air which makes the air fuel ratio lean. Typically, on a forced induction car, if you break pistons, it's either cylinder 7 or 8 or both of them.

Ryan

 

duh. i think i had a brain fart there. 7 and 8 sounds like a plan to me, anyone else?

 

#7 plug always looks the most off

 

7+8 typically blow out first thats why its a good idea to get your injectors flowed so you can throw the heavier ones in the back.

 

that can be solved by adding a bit to the injector balance on the pcm