Ok last time I'am gonna say this, OD is just to let you into 4th gear if your at the track keep it off unless you want to go over 120mph.

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01,Black,Lightning
K@N air filter
Super flip Chip

 

There's no performance advantage either way, if that's what you're asking. Some folks leave it on, some off, but no one has proof that it makes any difference. The exception to this is if you're running 4.10s or higher and don't want to shift right at the traps.

 

Yeah, what LOCOSVT said. I've tried it both ways and there is no difference with stock gears.

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Later,
Chuck
Black 00
Chuck's Lightning Page

 

had to try it no change in et time

 

Whats the best way to run your "L" at the track; with overdrive on or off?