Quick Fedco 2-342 Question
 

I was looking at a chart on the Fedco 2-342 and it said that "the 0.75 inch intake end is actually 0.625 inch @ radiator." Does this mean that this end starts at 0.75 inch and actually narrows down to 0.625? After I dremel it down to the narrow end is there still going to be enough room to heat up some tubing and stretch it over the remaining fitting?

One last question: What tubing heats up well? I like vinyl because it's cheap but I don't like how it's so kink prone.

The tube in question is the one that zigs in front of the core. Only about ~2" of the tube farthest form the core is .75", the rest all the way to the core is .625.

Alright, thanks a lot!