I recently went from an 82n20 jet to a 93n2o jet and the results led to an extremely rich mixture causing missfire.

My supply line from the bottle to the solonoid is -6 while my line going from the solonoid exit to the plate is -3.

I know that most larger plate kits use a -4 line from the solonoid exit to the plate inlet.

Can anyone confirm this issue?

 

The 3an line maxes out around 175hp.

 

Thanks for the reply Chris. I swapped to the -4 line and the afr's came around but the darn thing is still cutting in and out. Almost like the kit is shutting on and off on the positive side.

 

If you have the availability to...hook a volt meter up to the kit and see if it's cutting out. Also sometimes when the nitrous is cutting in and out it could be a bad bottle fill in some cases.