I got my NA tune dialed in on the new setup and wanted to test the nitrous which is jetted for a 400 shot with the NO Stinger 2 plate on my 403". I was using the progressive set at 50% initial and ramp in at 1 second.

I did have my Hoosier slicks on the dyno which seemed to be spinning. Can anyone confirm if this indeed is just the tires spinning? The AFR went pretty rich on me also which it doesn't do on the street.

 

seems like it shifted gear.