1990on35s

hey guys my wife just bought me a truck for a coming home present, i am serving overseas currently, i was just curious what are some good upgrades for this truck as far as mild performance and mpg it already has straight exhaust, and it is not the stock motor is out of a 1989 mustang. any ideas would be much appreciated

TheCollector

switch the engine back to the truck 302 LOL look up some performance mods for the mustang 302s cold air intakes are always good