Tuning by Marty at Extreme Performance. 3.5" 6-bolt pulley from VMP and FINALLY a custom tune (had to get off the Roush canned tune). Still stock bottom end, forged internals will be coming in the next few months hopefully.

1st pull at 20 degrees of timing




Backed out as much timing as we could to 17 degrees, this is what we settled on




The pull: