Start with gears
then cat back exhaust
then headers and cold air intake
then trans servo/shift kit and torque converter upgrade
then cam with tune
then some 243 heads
2002 Tahoe 4.8 - soon to be turbo'd - SOLD
1989 Mustang - LX Vert - 351W-TT - 2inches of dust covering it
2012 Raptor - 497rwhp at 10psi
If you aint breaking - you aint going fast enough