I ran 4.30's with 29's on the street and 28's at the track that was with a 340, When I put the 416 in the i also got rid of the 29's and used just the 28's with the 4.30. it seem a bit much so I switched to 3.91's and I'm happy with this combo. Runs just as fast and a few less R's on the freeway.

gary