It went 12.46 @ a little over 108 at Norwalk last month, I don't know what the DA was but it was a normal early fall midwest day, thinking low 60's for temp in the evening. The Wallace Racing calculators show between 440-460 hp based on the weight. The motor went 11.90's in a B body, 2 owners ago. It has a mechanical fan and power steering, which certainly isn't helping it.

I set the lash at 28/32 based on the original specs for the 590, and timing is at 38* with a Mr. Gasket light spring kit so it's pretty much all in at idle. I wanted to see if there was anything on the table with jetting but ran out of time, only got 2 runs in during a 5 hour T&T. Hoping for a few more and really wanted to see if jetting it up helped any.