Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#6
07-28-2009, 05:35 PM
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Re: M40 adjustments
Correct - I have a "CD" coded low perf M40 in my 72. By adding a shift improver kit (not a full blown shift kit) and tweaking these weights I was able to get it to shift where and how I wanted it to. It is a little bit of a trial and error process but is not overly difficult. It has performed flawlessly behind a GM crate 454/425 for 8 years now.
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