I have a total of 7in lift and the inspection guy gave me **** about it might be too big. But it has been this tall for a few years now so I don't think it matters all that much. But my truck is technically a 74 even though the chassi and a good portion of the body is 85 and the engine is an 83, so I guess that means I'm emissions exempt! I love it, I have no emissions equiptment on my truck any more, including cats.
Any way yeah they go by mph.
Where are you guys located in Mass?
I'm in Franklin, just north of Rhode Island