i have the base timing advanced to 12*, 58MM throttle body, CAI, full catback exhaust and my 88 B2 is pretty peppy, actually faster than my buddies 92 Ranger w/ 4.0 5sp 1st through 3rd gear. He has 3.73 gears and 31s. i have 3.55 gears and 235/55/17. Also i recently towed the 6x12 U-haul trailer from albuquerque, new mexico to ft. polk, louisiana... approx 925 miles. Weight slips to prove the weight... almost 4000lbs even over the stock B2's weight. I towed at 65-75mph the entire trip, 4th gear until about amarillo, tx, once i got down into the lower altitude i was cruising in 5th. Averaged 13mpg.... DD I average about 17.5-19mpg