I think I found the cylinder that is not running optimally

[XfireZ51]

Originally Posted by tokuzumi

I'm assuming the cylinder numbers are like the small block Chevy so it was piston 5 (3rd from front driver side).

I can pull the plenum at a later time and get the injectors cleaned and flow tested to ensure proper operation. Slap some new o rings and see what happens.

But if I had to do some engine upgrades....

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If you are going to have injectors flow tested, then go thru the process of flow matching the injector pairs if needed. Some injectors may need to have harness locking tab removed to do this.