RedNyt GT

Ok, been thru a few tuners and have a local guy who Im using now. The tune is great except for one thing we cant get figured out. On a cold start up, the rpms flare up to around 2500 rpms for about 10 seconds and then it drops down to "normal". Hes attempted to fix a few times and it seems we get close but nothing sticks and it starts doing it again. Any ideas/suggestions ? Oh besides getting a different tuner.... haha. Like I said the toon is great except for that part.

Nuke

My suggestion: Brenspeed or AM

With your mods, I suspect the cams are part if not all of the problem. If your guy doesn't have the experience, leave it to the guys that do.

Bigorangek9

Mine does the same thing! Not every time, & it's mostly around 2000 rpm, but it drops off pretty quick. Did it before, and after my Bama tune.

JIM5.0

My suggestion is buy an '11 or '12 GT with 5.0L Coyote engine and load up ths TOON graphic on the underside of your hood: LOL