i need some help debateing on something , i have a 99 banshee with fmf fatties,power core 2 silencers,reed spacers,unifilter,delta force 2 reed cage,boost bottle,330 mains, cool head with 21 cc domes, i am running it on 93 octane, i want a little more out of the motor should i go with some 18cc domes and up the compression that way or should i take and have it ported and polished and have diff pistons put in it running raceing fuel wont be a prob i race it in motocrosss i dont have a prob running up front in the pack with it the way it is i just want a little more power is all any suggestions will be appreciated

 

Compression will help mostly on the bottom end. Porting is your option for added power on the top. Stick with a mild/med port job. This will keep reliability good. Radical porting will tend to wear rings faster.

 

thanks alot