So I know that there are loads of upgrades for nitro engines on cars but what, if anything, can I get for my .46 evolution engine to mak it run better/better performence/ all that pizzaz.

(UPDATE)- Ok alot of people are saying switch to a 2 bladed prop, toss the fly wheel, and pull the limiters. All this change in the engine makes me a little nervous so I want some answers first guys. What exactly does the flywheel do? If I remove it will it off-balance anything? Also if I switch the prop what size should I get for my 40 size plane? Do I need a different spinner? (one with slots for just two blades or can I just use the one I have now that has 3 slots).

(UPDATED AGAIN)-thanks guys I really appreciat the awsome replys. I am now convinced that it is safe to do all this and im gonna buy a new prop/spinner on sunday. For my next plane I am planing on getting it in ARF version so I can have some freedom with my parts and such. I also plan on keeping my JR propo radio system since i know that radios do cost hundreds of dollars and I want to spend that much on a nicer 4 stroke engine. What would you recommend to put on a H9 corsair or a H9 p-51? (not the PTS version). Thanks again guys. Tyler