Will not run after running hard and backfiring three or four times in a row

I was running it hard when all of a sudden it started backfiring, three or four times in a row. After that it would not run right so I put it in the shop and it had three broke plugs and a blown intake manifold gasket so I got them fixed. Now since I have them problems fixed all it wants to do when you get in the throttle hard is fluder early not pulling near like it should, while at the same time you can hear the supercharger winding but not pulling. The truck seems to run fine until you want to get in it hard but seriously I need help please! Thanks