Tips for HP gain?

My 2 cents. That should make REALLY close to 350hp. It should be running about 85MPH in the 1/8. Had a Demon that ran 106-107 first time out with the same basic engine in Vegas with 4000DA. Our car had a XE268H (one step smaller), 750DP, 2500 converter and 2.76 gears.

Traction is a more about ET, MPH is about power to the ground and you aren't making it right now.