How to launch a manual on the street?

Your right about the suspension. Some types of parts can be used in both and some can not. As far as the how to work the clutch on the street, well, all depends on the vehicle and driver. Need to get to know how the vehicle will react with a certain parts added, powerband of engine, lots of variables.

Little story, I was visting my best friend in Florida while he was at school. Second night there we talked about playing around in his 99 Mustang w/ California emissions that we have worked on for a little more then a year at the time. Abandoned parking lot was the playground. We tried air pressure, "warming" up the tires, etc etc. Only thing that worked was slipping/feathering the clutch off the line with pedal to the metal or launch at 2500 and roll into the throttle easy. Doing the second with just driving the car and learning what the car liked, 160,000 miles it would ran constant 14.30 at the track. 10 years before, Ford tested the car at 14.10 not to shabby.