N nrg_goat88 New member Nov 9, 2011 #1 I'm getting a dual exhaust system with dual flowmasters put on my 1973 lincoln continental, what kind of hp and fuel economy gains should I see from this ol 460?
I'm getting a dual exhaust system with dual flowmasters put on my 1973 lincoln continental, what kind of hp and fuel economy gains should I see from this ol 460?