has anyone used a Predator Carburetor. i have a pulling truck and i would like to try a Predator Carburetor out but not sure how they work and how good they work. would it be better then a 850 double pumper /ported. Thanks

 

I worked on a pair on a blown BBC. They seemed very picky about air temp. As the evening cooled off, I had to keep adjusting them.
Personally, I would stick with the 850.