I have the PC625 in my -8 with an IO-360-A3B6D, and I have never had any problems starting with it. And it gets COLD here in Ottawa, Ontario ;-) Anytime the temperatures are going to be below freezing, I plug the sump heater in. But I have had no problem starting when the outside temps are -15C (5F).
Cheers
__________________
Mark
RV-8 C-GURV (Flying since Nov 2004) - Sold 
Scratch building 4pl Bearhawk
Flying a '79 Maule M5-235C
President EAA Chapter 245
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