any progress at all here?

you know, I just realized that if we have 136 ft*lb @ 2800rpm, as the manual states, that is 72,5hp. If we were to move that torque a bit up and have 136ft'lb @5000rpm, that would be 129,5hp. Is the flow good enough to achieve that (which would mean the limit's somewhere else) or is the cylinder head itself limiting ur from reaching that potential?

Kurt what a cool thread! Can you tell me what size the 84 duke intake openings were and did you go by the head or the gasket when you made those wooden adapters? Thanks to a contributor to this thread I now know where to remove material to get rid of that restrictive swirl port idea.

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84 Duke, Holley TBI, Manual Trans 4.10, CompuCam, White