Well I have an 05 450 that runs great and I only dune and drag race the bike but a few local guys are catching up so I need a little more power, don't want to break the bank either, like to stay reliable too. The engine is fresh and the bike runs awesome right now. How much HP gain is the 480 big bore with the same 12.5-13.1 compression, I would like to go with a bored FCR but what size and anyway to stay under $400? I have an ESR intake but haven't tried it yet, worth any HP? Would swapping to a Web 208 help much in the HP over the stage 3 and how much are those FCI intakes worth HP wise? Anyways just looking to start buying some parts, one at a time to get a little quicker in the 300' drags. Here is the mod list:
Brand new Honda crank. 02/10/09
CP Venom 12.25.1 pumpgasser stock bore
Hotcam Stage 3
2 layer headgasket
Head ported and milled .010
Dasa exhaust
Curtis Sparks needle in stock carb.(180main)
Curtis sparks air filter and ring combo.
Dyna programmable ignition (curve 1)
13/38 gearing
+ 6" swingarm.

Thanks for any help Clint