Update!
Was a good summer but had my first mechanical failures at the track.
Once I got my headers on in the spring I drove to Ohio to see Steve @ RDPMotorsports (rdpstore.com) for a dyno tune. Steve has always been great with getting orders processed and he has great communications. Meeting him gave me lots of confidence for the tune, My car put down 442HP.
My first track day was in May and the only changes were the Pfadt headers, tune, Detroit TrueTrac, Z/28 diff cooler and the swap out of the Z/28 rear antiroll bar to the bigger OE 1LE bar. I also made a few alignment tweaks with less rear toe in (1mm toe in which is about .125*)
I had ran a new personal best that track day but i also spun on entry of turn 8.
Fast lap
Spin out videos:
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I believe I spun out due to the minimal toe in I was running. This makes the car balanced towards oversteer.