[Technick]

A chip that is "tuned" right is ALWAYS better than just bumping the timming and changing the fuel pressure with a adjustable regulator. Here is why: When you make a timming change at the dist. you are making a "global" change. In other words the timming change is the same regardless of engine load, rpm, temp, throttle position ect. The same for the fuel pressure change. With a properly, (emphasis on PROPERLY) tuned chip, the fuel and timming curve can be customized for the right A/F ratio and timming for most engine operating conditions. So the engine is optimized for a particular condition instead of having the same "tune" regardless of what is happining with the engine. Now your generic chips for STOCK applications do not usually get this technical. A rule of thumb is, the more info the chip maker wants from you about your car the better the chip is. So if all you need to give them is Year, Make, Model then the chip will have marginal effect. If they want: Gear Ratio, Cam specs, Compression, Trans, Intake Manifold, T-body size, fuel injedctor size, MAF size, ect ect ect...... then chances are you will get a much better result from the chip. Oh yeah, it will cost more.