[Hozer 88GTConv]

I guess you don't have one of these.

It would help you troubleshoot a possible fp problem. At least it is cheap too.

That is what I would look at given your info. Your ignition stuff looks more than adequate.

I imagine with nitrous you gotta have an adjustable fpr. Just crank the fpr up a few psi and drive it around and look for white smoke, then your running rich. Then, back it off a couple of psi.

A/F gauges are a rip-off imo. The only real a/f gauge would be one that is attached via individual thermocouple bungs in the header.

Those multi-colored things are just not accurate enough.

Good luck.