Cheap overbore kits are available on ebay; expensive kits are available from Todd Henning Racing http://home.earthlink.net/~toddhenningracing/index.html
A set of Dyna coils and good wires http://www.dynaonline.com/english/coils.htm are a must (use NGK plugs ONLY-Champions or Bosch plugs are poop), electronic ignition upgrades are out there, but as far as I know they are REALLY pricey (like $500). Get some Mikuni VM carbs (Sudco supplies 'em and will even set them up for you http://www.sudco.com/mikuni.html#vm). If you wanna go as far as cam (Megacycle – parts store item only) and headwork, check Todd Henning Racing for that as well...again, expensive but its the best stuff out there…
350s have a tendency to grind down their cam chain tensioners over time. Both stock replacement and trick ones are out there.
Clymer manuals used to have a repair manual in print that had a hop up section for 350s. Check Amazon or ‘da bay.
Honda go sideways!
A set of Dyna coils and good wires http://www.dynaonline.com/english/coils.htm are a must (use NGK plugs ONLY-Champions or Bosch plugs are poop), electronic ignition upgrades are out there, but as far as I know they are REALLY pricey (like $500). Get some Mikuni VM carbs (Sudco supplies 'em and will even set them up for you http://www.sudco.com/mikuni.html#vm). If you wanna go as far as cam (Megacycle – parts store item only) and headwork, check Todd Henning Racing for that as well...again, expensive but its the best stuff out there…
350s have a tendency to grind down their cam chain tensioners over time. Both stock replacement and trick ones are out there.
Clymer manuals used to have a repair manual in print that had a hop up section for 350s. Check Amazon or ‘da bay.
Honda go sideways!