adjustments for more power?
I recently bought a '92 36 passenger Ford Wayne bus with a 7.8 Brazillian engine. The engine is new and the bus only has 88,000 miles on the chassis. It is topping out in 5th gear at about 45-50 mph. Can the gear ratio be adjusted to bump the top speed up a bit? If so, how difficult/expensive is this? Any thoughts on this would be greatly appreciated.