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   rec.autos.tech      Technical aspects of automobiles, et. al      117,728 messages   

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   Message 116,401 of 117,728   
   SNAG to All   
   New here ... and an old gearhead   
   25 Dec 21 23:19:41   
   
   From: snag_one@msn.com   
      
      Micheal Trew told me about this group while we were conversing via   
   email about my truck motor build . The motor is a 305 "H" motor in a   
   1986 GMC 1500 LWB pickup with a TH700R4 and 2.73:1 gears .   
      The motor mods include a .030"over bore with flattop pistons   
   (anticipate about 9.5:1 or so c/r) , stage 3 cam (ELGIN E-922-P)   
   small/long tube headers , Edelbrock Performer EPS manifold with a Holley   
   750 CFM vac secondary carb . I have the HP heads with 55 cc chambers .   
   This motor is rated 165 HP stock with 9:1 compression . I'm hoping that   
   between rippin' off all the smog gear and the mods I'll make around 250   
   HP - though that may be optimistic . The exhaust system will be 2" dual   
   with Thrush Hush mufflers . I don't need or want to advertise .   
      The other major change will be replacing those 2.73 gears with a set   
   of 3.42's . We live on the southern edge of the Ozark Plateau (north   
   central Arkansas) and there a 2 things the roads here ain't . That's   
   straight and flat ! Great roads for bikes (ask me about my Harleys) but   
   them flatland gears ain't cuttin' it .   
      The only other change I plan - for now - is a shift kit in the trans   
   . I need to do some research on that one , I don't usually mess with   
   automatic transmissions .   
      BTW , A/T's are about the only thing I don't usually work on , I   
   maintain all our cars and bikes . And I have a pretty complete hobby   
   machine shop ...   
      
   --   
      Snag on the   
   travelin' laptop   
      
   --   
   This email has been checked for viruses by Avast antivirus software.   
   https://www.avast.com/antivirus   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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