A few KB Mammoth Questions?

[dsm2cobra]

I'm about to pull the trigger on a polished KB Mammoth blower.

- Is the LC option worth it?

- Should I be able to get away with a 3.5" upper and stock lower pulley on 93 octane. I will have longtubes and full exhaust which should slightly drop boost.

 

[FastNick01]

LC is only worth it if your going high boost in my op.

Also I wouldn't go with the mammoth running pump. The extra money won't really be worth the power unless going 93+torco or E85 and 20+lbs of boost.

others may disagree but that is what I'm thinking. As far as the pulley, I'm not too sure on how much boost a 3.5 only would make, Ive read around 18.5lbs.