Recipe for a lumpy idle?

[RickinAZ]

Traditionally, the source for a lumpy idle (like on a breathed-on H-D) is a more aggressive camshaft, but I've seen Wrangler 392s that make that music with seemingly stock cams. What's the secret?

 

[Winston]

Traditionally, the source for a lumpy idle (like on a breathed-on H-D) is a more aggressive camshaft, but I've seen Wrangler 392s that make that music with seemingly stock cams. What's the secret?

I've wondered this myself and haven't been able to verbalize how to ask it haha. Feels like the engine is teasing a misfire haha.

 

[Un4seen4]

yeah mine will kind of get that cammed lope/idle surging sound you speak of, ill try to get a video of it when it happens next.