First Time Drag racing

Last weekend I finally took my Duster drag racing at a local muscle car day. Even though the car had many issues it was a blast.
It is a 72 Duster, 360/380 magnum(Bigs 750, M1, chrome box, msd coil, TTI headers w/18" ext), 4 speed, 3.91 8.75 w/spool and adj. snubber, 002/003 springs, CE 3-way shocks all around, 295/55/15 Mickey Thompson ET Street SS.
First, some of the problems. There was a pretty solid bog off the line, launching anywhere from 3500-5k. Also found that it didn't want to shift at high rpms(like hitting a wall). Syncros? Additionally at about 4500 plus it started to pop and kinda fall on its face sometimes. Lack of fuel? We messed with the timing some and that didn't change much. Also noticed the fuel filter never really fills above half.
Best stats of the day
60'- 1.970 330-5.691 1/8- 8.814 @ 80.6 1000 11.421 1/4 13.636 @ 102.02

Planning on switching to 3/8 fuel line and a Carter strip super w/ Holley reg, MSD 6al, MSD pro billet distributor.
What do you guys think is left in her and what I should do?
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First time cool, did anyone tell you leave on the 3rd yellow light right when it's turned. It's just a good way to get really good on reaction time, & if dude next to you has a little faster car you can get em to jump sometimes.