I have a weird surge up to about 2500 or possibly throttle position related. I took some logs (csv, and also datamaster version) and I have the tune file if someone that knows more wants to check it out.

It's a 94 LT1 hotcam, hooker shorties, 6spd car. I have a tune I found a long time ago that I'm using. I don't think I changed it any though and it never really used to do that. (I had the engine in another car and swapped it to a new one) So it might possibly be just a sensor that didn't get switched over but I'm not sure yet. Hopefully someone can scan the logs and and let me know if there are any abnormal readings or if it's just the tune.

The problem is that when I'm barely on the gas it's driving rough and there's this point where it feels like it just hits with all this power and running smooth. Usually it's around 2-2500 or when I push on the gas more than just light cruising. Also, when I'm on the interstate I can feel it surging without me moving the gas pedal at all or rpms.

I noticed that when it happens the long terms drop low like 108-118 and around there a lot.

If you want to see the files I got send me a PM with your email address and I'll send them out in a .zip when I get home.

Thanks,
Ross