SC-Trim, S-trim.... ???

[leathal injection]

Hey guys i dont know much about blowers and i gotta question.

if i put a smaller pully on a SC-Trim to make 8psi, would it make the same power as an S-trim with 8psi?

the reason im asking, my friend is selling his sc trim, cheap... really cheap. but i dont wanna limit my ceiling to how far i can go with the smaller blower. my friend told me i will have better low end torque with the smaller blower.... ???

and also, i have 10.5:1 comp. motor with 24lbs injectors and a 255lph pump in my tank am i even safe to run 8psi?

THANKS!