Tuning issue on a 440

Just Send It said
Do you have a gauge on your FP regulator?

I do not. This is just a mechanical fuel pump with no regulator. Essentially a stock system

roccodart440 said
Unplug the vacum advance. Set the timing to 36 total. Use premium fuel (91+) and test drive it. LEt us know what happens.

NOte: to set total timing you have to rev it until the light line stops moving, which can be 3,500+

Thank you for that information. Given that this is a holiday weekend I wont have time to do this. But I will give it a go and report back.

Lefty71 said
Is the distributor bone stock??? If so, look for a black box with a wire leading to it on the side of the distributor, in addition to the vacuum advance can. Let me know if it's there....

To my understanding we have never modified the distributor. So yes it is stock. There is no black box with a wire leading to it on the side of the distributor

To aid in tuning would it be a good idea to get a simple AFR gauge and attach it to the tailpipe with something like this?

https://www.amazon.com/dp/B000CO9MF8/?tag=fabo03-20

Some places say the readings shouldnt be that different on a car without a cat when measured from the tail pipe outlet.