440 Starter Opinion

I wrapped my headers before installing I can't imagine how frustrating it would be to wrap installed. Doesn't run like it should in what way?

Dissapointed on the dragstrip , only had it out there once , 11.90`s spinning, 1.79 / 60ft no front end lift at all.
new disc brakes take a lot to get used to trying to stall it up. Learned a lot about it and have been changing some stuff , only 3:73 gears tho.