Nice looking fox. I am jealous.
Dont bother replacing the block heater with another, just pound a frost plug in instead.
Change your name on TCS btw, you werent really off to a good start.
Sounds like you have a good base for some decent power though. Time for a Head/Cam/Intake combo and maybe some nitrous if you can handle it
Let me know if you want some advice on the fox, I can point you in the right direction atleast.