What is the timing needed for a 1984 Mustang 5.0 bored .30 over to a 306 w/ a 218/226 on a 110LSA w/ GT40 heads, Edlebrock Performer Intake Manifold, Pullies, Shorty headers, Catted H-pipe, Flowmaster 40 series mufflers, pullies, and a holley 650 carb? Need to dial it in for a buddy of mine before the track friday. Where should this thing go he wants it as accurate as possible, i can only get it so close by ear- maybe within 5°