I just received my t4.1+ today and am pumped to get it out on the track this weekend. I plan on putting in a 10.5 motor. I run on high-bite clay, indoor, medium large sized track. I do prefer more low end than high end, does anyone have a pinion/spur combo they would recommend based off of the info above?

With my SC10, I'm running the stock Reedy motor/gear combo and am having a good time with it, but I'm not sure where to start at with this t4.1.

Thanks.