is jetting affected

[qboronyrican]

do you need to rejet if you bump up the compression by milling the head.......and what mods would affect the jetting?

[fastrthnu]

do you need to rejet if you bump up the compression by milling the head.......and what mods would affect the jetting?

1. nope.

2. anything that has to do with airflow or atmospheric/altitude changes.

[qboronyrican]

ok .....thanks

[NYUK]

do a plug chop to be safe, theoretically, any change to intake or exhaust a plug chop should be done.milling the head may need more octane. better safe than a hole in a piston.