Help me find the umph in my 360

Possibly you are feeling the converter Locking Up in second gear, instead of not making it into 3rd yet??

Poor adjustment of the Lokar Cables, not getting the shift points right???

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Looking like you are taking your mph/rpm readings while it is still in second gear, the way these numbers are coming out.

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honestly now thinking about it the rpm gauge was setup on the 6cy for the slant 6 that was in the car, and i honestly cant remembering changing that to 8 on the gauge. Man would that be a big relief if it was just that on at least the rpm issue. Crossing fingers when i get home lol!