Cam 2

[Poston5]

Does cam 2 really help power wise in a 400ex. Is it worth the extra 3 dollers a gallon. My brother runs it through his CR 125 but that is a 2 stroke and mine is 4 what do you think.

[skemp]

It is worth it if you have a high compression motor. Otherwise, not really, and it can actually hurt power in a motor with lower compression because it resists ignition so much more than pump gas. You would probably be ok running it, and you will notice a difference in how smooth it runs, because it is much higher quality found in the tanks at a gas station, but for $3-$5 a gallon, the cost might outweigh the benefit. :)