W2 408 Dyno results today !

TT5.9mag said

It’s quite common on single plane single carb stuff. That’s why companies like Wilson Manifolds find so much power in professional level porting and modifying on intakes. Lots of guys stagger the jetting to compensate. @mbaird how did the plug look on number 7? That’ll tell you if it was a sensor issue.

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I have not pulled the plugs yet . It was getting late and I was starting to fade...lol

I would think #5 would be effected as well if it was just a distribution issue .
But I am ignorent about interpretting dyno data. Just pure speculation . But if the plug or cable was starting to misfire at high rpm/loads it would explain the flatline. I would gave guessed a lean situation if it was distribution .