75 0r 78 mm stock tb
#1
75 0r 78 mm stock tb
in have a 99 camaro midle modified engine , ls6 intake , hooker lt headers i want to use a bigger tb but i dont know the diameter of my tb stock, if is 75mm can i swap for a 78mm...... it does fit? or just port the 75mm. which is better? pls help me