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  #53  
Old 01-09-2023, 11:01 PM
mrmark1957 mrmark1957 is offline
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Join Date: Aug 2007
Posts: 84
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Quote:
Originally Posted by hurryinhoosier62 View Post
406 (.030 over 400)/TH400/3.23:1
Stock 400/TH400/3.73:1(trailer towing package. It was killer off the line!)
My least favorite 350P/TH400/2.45:1( it did get 20-22 mpg but was an absolute dog under acceleration.
Do you remember what cylinder heads/ compression were on the 406 ? What octane gas did it need ?