I finally got my 71 K5 fired up with it's new crate motor and now it's needs exhaust. I don't have to pay to get it towed; I get one free a year with my insurance but i'd like to save it for a real emergency. It's about 10 miles (highway) to the exhaust shop. Should I just do it or get the tow? I broke the motor in with open headers (in an apartment complex too ) so would it be any different?