I have the iron World 200 series heads and my Hookers fit fine. Have to be a little bit of a contortionist to get the plugs in and out but they aren't that hard to get to.

In looking at the illustrations on the Dart and World web sites these two heads are pretty hard to tell apart.

I would think you would be more likely to run into interference with the clutch linkage.

But you may find this to be not so in your case.

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Murff

"Deliverance" was NOT a documentary!