Thread: M20 or M21
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  #35  
Old 12-16-2021, 12:01 AM
74Grandville 74Grandville is offline
Ultimate Warrior
  
Join Date: Mar 2003
Location: Plainville, CT
Posts: 1,837
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I put a 2.64:1 and 3.42 rear in my TA. it seems like a great combo with my basic W72 type build.

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1979 Firebird Trans Am 301/4spd (Now 428)
1977 Firebird Formula 400/Auto
2007 Grand Prix GXP 5.3L
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