I have a stock 351m in my truck now, and i think it is pretty good but i have been told get rid of the smog crap and it will be better.
what is the smog crap, how do i take it off, and will it change anything?

 

Leave it alone but make sure it is working right. To remove the equipment requires recalibration and other modifications that are much more involved than pulling a few hoses etc. Most of what hurts performance in that engine is internal.

 

how can i be sure it is working right?

 

Any smog check station can usually tell.

 

I took all my pollution hoses, smog pump and all that off, now it runs really good...no noises or anything......

 

Did you have to reset the timing?