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hi just got 89 25b regal and was wondering if anyone has upgraded to tbi and 4 speed trans on these models.
thanks steve1 new member
Posts: 1 | Location: alberta | Member Since: 08-24-2019Reply With QuoteReport This Post
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I did one a while back. Much better than carburetor.

Do a search for "TBI" several other references.

Others have done trans/overdrive mods. I went with a beefed up 3sp TH400 on the 33 ft I had.

"98" Monarch 37
Spartan MM, 6 spd Allison
Cummins 8.3 300 hp
Posts: 4116 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
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