Got a 91 suzuk when under full throttle surges like it has a governor? put 13inch tire on more noticeable. this is the same little truck the 4wd did not work on. morale, stay away from deals even at whole sale level. They are what they are and you pay for what you get! Anyone with ideas on the surging? thanx for the help in advance!
could be running out of fuel under high load. try a can of gas cleaner and a new filter . $10 and it might work.