a different cam question....

[wannafbody]

will a 220-224 duration cam work well with stock rear gears on a m6 or a4?

[Constrictor]

Yep. Those cams arent extreme enough to shift the powerband up too high.

[Darkhalf]

Yup a cam like the 220-224 duration is fine on stock gearing. However even on a stock cam, going to a different gear is still beneficial no matter what.