I had it on level 5/extreme and push the pedal to the floor at about 20mph or so and as it was stretching out it started what i guess is called surging it kind of acted like it needed to go ahesd and shift but id wouldn't so i let off. any input would be appreciated! thanks -

acf350's Sig:

-late 1999 f250 ext. cab 4x4 7.3 powerstroke, auto, strait 4" turbo back exht. , k&n intake, edge juice w/ attitude
-1988 f350 flatbed w/ 93 7.3 idi turbo: stock turbo, strait piped

I think alot of the surging problems happen with the 7.3 when ya put a chip on them, I know my brothers 2000 7.3 does, and when he got a wicked wheel it solved alot of the problems -

Shea@L&N Performance's Sig:

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well i tried it again on the same setting today and it ran out and shifted fine so i dont know what the problem was but to your comment i also asked a friend of mine the same question and he said it did the same thing with his superchip but it hasnt done it w/ his edge evolution so you maybe right thanks anyway -

Good deal, just let us know if we can help! -