Adding some stuff/Rejet?

[sheerocks]

Im adding some bolt ons. Will I need to rejet? Im going from stock head to a coolhead with 19cc domes. (Running 110 to be safe)Adding VF3 reeds and advancing the timing +4. Thanks for the help.

[okbeast]

Only thing of those that MIGHT need a jetting change would be the reeds. If they are more responsive down-low your needle might need to be changed, that's the only thing I can think of.