Gonna hook my truck to the sled this weekend. I have a 95 regular cab long bed. 5 speed, dana 60 swap. Posi front and rear with 4:10's and im runnin a darn near new set of 305x70x16 Cooper AT3's. Never hooked to a sled before. I've read through a few posts on here and know to get the sled moving before romping on it. Im gonna use 4low 2nd gear, my question is how much air do I need to run in my tires in the front and back? I know most everyone there is gonna be runnin chips/programmers, injectors and probably different turbos and what. So the only advantage I will have over them is probably the locker up front cause I dont have a chip. Gonna do the resistor mod but should I use the 4.7 or 10k? Any advice is appreciated guys. Thanks.