5.0mustang5speed

is the proform main body worth the 100.00, they claim 25-50 hp increase

vfast

yes..it gives you more adjustability

JD1969

Agreed, but don't think that you will get 50 hp after you put it on, it will flow more air and may require some tuning.

5.0mustang5speed

a few people said that if the holley i have is tuned , that changeing to a proform body probaly will not seen much if any increase in hp. it looks like when you change the 750 to the proform body it make it a 830-850

JD1969

Then the question is do you need more air flow? If not save your money for somthing else

Demon 340

i have one, and i picked up a bit from it, but i certainly didnt get 50hp.

and it did require some tuning from i went away from the BG body.