Okay, so I was talking with the shop manager at place that recently
replaced my fuel lines (on my Tiico conversion).

and he noticed that there were no hoses connected up to a couple of
tubes on the housing for the fuel system.

According to him (as near as I can recall) this was a heater for the
fuel injectors, and there should be a couple of lines from the coolant
system. Without them the engine will run rough when cold (as the engine
was idling and warmed up enough it got smooth, to "confirm" his point.)

I just looked at the pictures on the Tiico page and even there those
lines aren't hooked up.

Any comments from folks that would know better?