how to check for air conditioning gas leaks? do you grease a throw out bearing? What are the greatest wieght saving mods[besides only running a quarter tank.? what is the best tire size to run up front? Are the 94/95 superior in aerodynamics to the new Mustangs? With my current listed mods and a 125 shot of nitrous how my hp do you guess i am running? Has any one seen the new m6 in the latest Motor trend,is that bad or what?