How do i get my BB Dart to hook???

Instead of telling you what is wrong with your car,I'll share with you what worked for me and maybe you can in-corperate some into your car.

This is the trainer car.
74 Duster
7 point cage
frames tied
8 1/4 rear end 3.91 gears with sure grip
12.5 Houiser QT pro's
727 trans
2500 rpm stall converter
440 engine 330 hp at rear
/6 bars
worn out front shocks
stock rear shocks
340 rear springs
Adjustable pinion snubber set right on the floor boards with the car level
Car ran 12.21 et
With 150hp nos the car ran 11.59
So with the nos the car is around 500 hp at the back wheels.

Tire pressure is set between 12.5 to 14 lbs depending on the track.