Yes sir. 4.88 gear. Rear tires are 14.5 X 32 Phoenix radial slicks. We shift 1-2 at 6500 and 2-3 at 6800. And as far as rev limit we've turned it over 7k before. I don't think that it makes any more power above 6800. It's a long stroke 4.125" and a conventional style head.