Around 50 MPH is all you'll get from it, as long as it's flat ground. About all you can do to make it faster is get a bigger sled, they were made to be simple, slow and dependable.
Hate to tell ya man but getting any performance out of Bravo's is gonna be rare. Back in the day i drove my dads SRV 540 fan and totally wooped on it. They may be good sleds for hills and blazing trails cause of the long track. but if you want perfomance ya may want to look in to a different sled.
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99 Mach Z
94 Jeep Grand Cherokee
99 Black WS6 Trans Am. 6-Speed YYYEEEE HHHHAAAA