New hammer what will it run?

I'm going to say Low 10's....possibly better with good air. Your combo looks like it will be putting out about the same power as my 408, except your truck is a little lighter and you are running a 904, which is going to be faster than my 727 any day. Once the combo is sorted out, that thing should boogie.

Also, I can confirm, if I don't get my engine hot enough (using e85) it will stumble off the line. ~180°F is best (can be a little lower, but not much).