Originally Posted by
Fred_B
And for the speed thing, go run mod for a bit and see if a 4.5 is too fast.
It's about racing and if the class you're running is too slow then run a faster class.
I prefer mod. I have a 4.5 and about TEN 6t mod motors. I run stock at my LHS because nobody wants to race mod. The faster the better, but I have whats needed to adapt if I have too.