I got to test a smarty on my truck for a few days and it really made my truck snappy. The only thing that I did not like about the smarty was every time my truck shifts it would fall on its face but once the rpm's got going the smarty would really come to affect. My question is would aftermarket injectors like the mach's combined with my comp give my truck that snappy throttle response like the smarty gives? P. S. I ran the smarty on #9 and then #8 w/comp. Got to have the comp on to reduce the falling on your face affect.