Welcome! I am not on here as much as I use to be. Yes, that car has went through a few hands but some of those hands made nice refinements to it. I was supposed to go look at it at Mecum Indy a few years back for some people interested in it but the virus moved the date to when I was on a family vacation.
I am only guessing but I suspect it is not injecting fluid proper. I do not believe this has one of Jim’s rebuilt systems on it and if it don’t I would be willing to bet the metering valve diaphragms are bad. Not to take from this forum but most people have switched to the Facebook group and is much more active. https://www.facebook.com/groups/335089121268729