Bob, I dynoed my 512 motor before putting it in the car, it made peak power at 5600 RPMs and peak torque at 4500 RPMs. I had Contintental Converters make me a street/strip(10 inch) that flashes 4200 RPM, foot stalls less than 2300 rpm before it pushes the little front tires thru the beams
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My messgae is that I tried shifting it at or close to 5600 rpm (4;10 gears, 315x60x15 MT ET Street Radials) and it spent a lot of time in high gear. Looking at the playback tach after several runs I realiized that the motor was not slowing down at or before the shift RPMs. I moved the shifts points up tp 6000 RPM and then 6500 RPM and finally 7300 RPM, each time I raised the shift RPM the car went faster and quicker
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It still has me thinking about theory and actaul results
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The time slips don't lie
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Maybe your combination, cam, heads and intake,exhaust sytem will like a higher shift point also
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BTW, I'm thinking of replacing the Eddy CNC RPM heads and six pak intake and carbs on my 518 low deck pump gas motor with a set of 440-1 heads and a single Dominator intake and carb.
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I probally shouldn't mess with a good combination but how else do we learn
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I hope it works better
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