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tbi to carb

Discussion in 'The Garage' started by raelayotte, Jul 12, 2005.

  1. raelayotte

    raelayotte Registered Member

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    what di i need to switch to carb i have a 87 blazer what intake and carb do i need to do this and how
     
  2. raelayotte

    raelayotte Registered Member

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    any one out there
     
  3. gmcjimmy90

    gmcjimmy90 Registered Member

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    ok, couple of options you can order a intake for carb that will bolt to your heads, or if you have one laying around you can hog out the bolt holes to fit your heads. When chevy went to fuel injection they changed the angle at which the intake bolts to the heads. As far as a carb i would run a holley, but the size will deped on what mods have been done. If you haven't done many i would recomend a 600 cfm.
     
  4. sled_dog

    sled_dog 1 ton status

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    need a fuel pressure regulator as well. If you want to maintain the fuel pump(I would). A good regulator(with a return) isn't that expensive. I got a really nice one for $105, thats one that will do carb or EFI pressures(I plan to switch to EFI down the road).
     
  5. gmcjimmy90

    gmcjimmy90 Registered Member

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    Good point sled dog forgot about the fuel pump.
     
  6. alf4444

    alf4444 1/2 ton status

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    I'll take all your old TBI stuff :D
     
  7. uglyangelracing

    uglyangelracing 1/2 ton status

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    Just out of curiousity why in the hell switch from TBI to carb? Just wondering on your reason for doing this. Still looking to pass emissions afterwards?
     
  8. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Thats what I was thinking . I love my quadrajet , but if I had access to the TBI , I'd run it . Another excuse to have more spare stuff in my trailbox , seriously , I'd run TBI if I had it :D
     
  9. alf4444

    alf4444 1/2 ton status

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    SHHHHHHHH :D I could really use his TBI stuff :wink1:
     
  10. wforicv

    wforicv 1/2 ton status

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    Don't forget the distributor- you need a vaccum advance style. Also, you will need to fab or buy a bracket for you throttle cable and your tv cable for the 700R4 transmission. Check out these guys:

    http://www.tvmadeez.com/

    Make sure to get the tv cable adjusted properly to prevent damage (that's what everyone says anyway).
     
  11. dodgedude99

    dodgedude99 1/2 ton status

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    im in the process of doing the same thing, but im going to a carbed 454.

    i got rid of the elec. fuel pump for a mech. fuel pump, swapped out the sending unit as well.

    i can get an emissions waiver so im not worried about emissions anyways.
     
  12. raelayotte

    raelayotte Registered Member

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    i have had rat eat the **** out of my wiring and i can not find a replacement and i do not have the money to by new wiring
    u pay the shipping and hadling and maybe a few bucks to me i may sell it to someone and the zip here is 49854
     
  13. raelayotte

    raelayotte Registered Member

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    ok if i use a old intake what do i have to do to use it
     
  14. alf4444

    alf4444 1/2 ton status

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    PM me an address or paypal account to send the cash to and I'll take it :bow: I don't know what the weight is so you'll have to get the quote my zip is 84118 :D
     
  15. raelayotte

    raelayotte Registered Member

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    sale give me price

    tbi intake and a few misc.
     

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