Well, IMO, you pull it out and ship it to a guy who can connect the dots for you, and for a modest fee, you're back in action, and forever happy.
Or, you ship him your spare and get that one modified. Your man doesn't care which one he gets. You tell him what you want, and he makes it happen. This will save you weeks to months of chasing the curve by yourself. Well worth whatever it costs.
So, when you get it back, you stab it in, set the Power-Timing to 34* and Drive.
RESIST the urge to experiment, just drive it.