I put an al flywheel in my 69. TKO 5 speed, mild 350. I read a Vizard article about rotating mass and quicker RPM increases due to the lack of it. I would never do it again. I didn't put many miles on that car but I can tell you that it was not smooth. It was an irritating feeling....knowing that if I had done a steel FW that thing would have been smooth.
Quicker RPM increase? LOL do the math...if you race and points are on the line....great. If it's mainly street driven go steel, cut down on the cheeseburgers and you might end up with the same result.
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Bryan
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