a truck that I'm very proud of I have a 330 HP crate motor from GM performance and a 4L80E trans.
Items that i have added
Undersize MACH pulleys
100 amp alternator
flex lite fan kit
Oversize radiator with tran and engine oil cool
K&N air filter.
previouse fuel mileage 15
Hope with biger motor and add on to see close to 20 If I can every get it running the way it should.