My Jones Cam Recommendation

With the small headers, I’d have run a little bit of split too.

I was really expecting something in the low 250's @ .050" and overlap in low 80's upper 70's

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It may not be apples to apples.
He didn’t specify what lift the adv number was taken at, did he?

316 seems really long for a [email protected] lobe....... but it might be at some lift point lower than .020.