What to do...

So I've finally got to hit the track this year.

Previous best run last year with some issues was 11.70@113 I think around 5800ft da that day.

After some test passes and playing with timing before I ran out of tnt time.
[email protected] at 7000ft da
1.64 60ft
7.38 @93.6
Shifting at 7000rpm
27x10.50 Hoosier 4.30 gears
4500ish stall converter (not built for the combo)
Leaving off idle (best 60ft so far)
Here's the catch.. I think it can go a smidge quicker. I have a feeling a new converter built for the combo would be the ticket. But that's pricey. And aside from putting it and me on a diet, anything else you folks think I could do to eek out a little quicker?

Here's the combo as it sits
73 dart, all steel and glass w subframe connectors. 3500lbs (more of a guess but I'm a big boy)
Magnum 5.9 scat rotating assy 408
11.75:1 comp
Trickflow heads
Super Vic intake (basic port match)
Qft 950
Howard's solid roller 257/267@050 .640/.645
Loose front suspension, qa1 upper and lower control arms and strut rods
This outing I used drilled out stock shocks, I do have a set of 3way CE shocks to use as well (had the best 60ft with them last year 1.59)
Caltrac mono leafs rear with rancho 9000 shocks
Not the best video of the run, but it's what I have