95 Honda prelude vtec engine mods?

First of all, keep in mind that the sole purpose of aftermarket cams (at least to my knowledge) is to gain power in certain parts of the RPM range. A stg 3 cam is probably going to be more focused on the 5500-8500 RPM range for your Honda. This means that you will actually lose lower end power and torque; this cam is probably meant for highly built (and probably forced induction) engines. I'd go with a stage 1 or stage 2 cam for safe daily driving use. Keep in mind though, that getting cams means you will need a good tuning software (hondata is the most popular) to adjust and utilize the difference in air/fuel ratios that cams will give you. As for the rest, you are probably going to get a nice 25-30bhp out of the engine if you do just what you said you want to do. But a simple intake/headers/exhaust upgrade can add significantly on to that number with the proper tuning. Cam gears really don't give you much gain unless you really know how to adjust them; a lot of people get them for looks :P. Also keep in mind that most people get headwork done to give the engine "insurance" for when they do get really high horsepower gains; yes, it adds a smidgen of power in the process, but it is definitely a good idea if you have the money. I hope this helped (sorry about the lengthiness) and good luck with your engine build