Looking for an exhaust header that will fit my 289. Something similar to a shorty. A stock exhaust manifold from a later mustang would work. Basically I need the exhaust outlet to face downward ( at an angle) instead of shooting out straight back due in turn to my 289 being in an 80' Mazda Rx-7. I have a few bucks to spend and could really use the exhaust. My neighbors would appreciate it too