[Steve C.]

The tighter lobe separation might be helpful for a lower compression. But in the OPs situation wanting the 'smooth idle' it would be negative because the Idle quality would suffer.
That said a slightly rougher idle might be tolerated by many.

Another topic of interest might be changing to lobes with the same, or very similar, .050-duration but with less seat timing.
And with the same or similar lobe lift, or even adding additional valve lift.

Example, I suspect if you look over the lobes listed here at Bullet you might find something that has the same duration at .050", but with less advertised duration. And again with the same lift.

https://www.bulletcams.com/Masters/HFlobes.htm

This does not necessarily represent any endorsement here, its is offered for general interest only. Also keep in mind Crower, Comp Cams or others will grind custom cams to fit your needs.


.