Degree a E-303 for more HORSEPOWER

[PKRWUD]

I would have sworn I just answered this for you yesterday. Maybe it was someone else.

There is no answer that is the same for everyone across the board. It depends on what's been done to the engine, and your driveline. Your engine has a power band, an rpm range in which it makes the most power. Advancing the cam by 4 degrees (2 degrees isn't much at all) will lower the point where your power band starts by about 300 to 400 rpms. Retarding the cam 4 degrees will raise the point where your power band starts by about 300 to 400 rpms. Most mild street driven cars do better advancing the cam timing because it brings in the power sooner, but it also lowers your peak power rpm. Cars that are more serious racers will want to retard the cam timing because it will give them more power at higher rpms. Because every engine is different, the best way for everybody to determine the best degree setting for their cam is to install it, and perform a compression test. Then you change the degrees, and do a compression test again. Keep doing this until you find the highest compression reading, and you have found the best degree setting for that cam in that engine.

Don't listen to anybody that tells you any differently, because they are wrong. 25hp by advancing the cam 2 degrees is laughable, but gains can be made if you do it right.

Take care,
-Chris