Unfortunately, no one can tell you how to tune. You need to be able to tell what your engine is doing...and listen to how it sounds to really tune an engine. Temp is a guide....so is smoke....but your ear and your throttle finger will be the best 2 tuning aids ;-)

You're best bet is go out and drive with someone skilled in nitro tuning and have them help you. Tuning sucks at first, but you WILL get better at it. It just takes time...