I have been wanting to buy a new throttle body for my car but i didnt know which to get from a 70, 75, and 78mm body. I have a 1996 GT, i havent had any mods to the engine except some valve timing and a filter. I plan on putting some money into this project so i was thinking of the BBK 78mm throttle body. Or a 75mm by BBK. Any incite? Thanks.