Thread: want to uupgrade to 3.4 but need tuning help

Originally Posted by matt5112

Something to do.



Car doesnt like 17* up top.

Stepping down to a 3.6 because it seems KR is there no matter what I do.

I'd go to the 3.6 and see how it is when you retune it. Mine responded better with 19* on a 3.1" than 14* on a 2.9". What are your afr's at?