[Ivygreen65]

I have set my differential (97 TBird 8.8 IRS) and it has 0 degrees of angle - the pinion flange is square to the frame rails. To get 0* of pinion angle, I have my engine / transmission centerline parallel to the frame rails. Am I going to have any issues with not having any down angle with the engine / transmission centerline? I’m used to 2-3 degrees of down angle on other cars, but they were solid axle cars production cars. The one concern that comes to mind is the intake manifold having +/- 3* angle at the carb flange. Is this a concern or non-concern?