i was thinking about investing into a bbk throttle body and iwas wondering if the power gain i would get would be worth it, and if i should go with a 52mm or 58mm i have an 89 350 with some mods! thanks in advance to all who reply!!

 

sure a 52mm would be great but i would get a 58mm but you have to open up the upper plenum to make it work. but if you know you can sell the 52mm to someone i would get it