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Anybody running a spacer under the TBI?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Chili 87 K5, Jan 12, 2001.

  1. Chili 87 K5

    Chili 87 K5 Registered Member

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    Please: If you know what the ballpark timing should be for a new 1" TBI spacer, give me a hint... I just need to know where to start looking.

    Is it closer to 12 degrees BTDC? 20 degrees? Is there a good place to start trying?

    Thanks!
    Chili
     
  2. HarryH3

    HarryH3 1 ton status Author

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    I'd be totally amazed if adding maybe 4 cubic inches to the volume of the intake manifold would require a timing change. The difference in total intake volume is probably less than 1%.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     
  3. bigdaddy89

    bigdaddy89 1/2 ton status

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    I have an Airaid on mine and I didn't have to change the timing at all. I did have to adjust the linkage on the tranny to fix the shift points.

    GOT ROCKS?
     
  4. shum1

    shum1 1/2 ton status

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    Can you notice any difference with these things?
     
  5. 90K5

    90K5 1/2 ton status

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    I have one on mine, and it seems to help out a little.

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  6. blazer72

    blazer72 1/2 ton status

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    I'm running a injector spacer and the edolbrock intake. Plus a Turbo city cone on the air cleaner. I cant help on the timing though as I'm running a 400 block that 30 over with the stock 93 head and stuff

    I understand the jeep thing I drive a BLAZER!!

    Ken
     
  7. blazer72

    blazer72 1/2 ton status

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    I'm running a injector spacer and the edolbrock intake. Plus a Turbo city cone on the air cleaner. I cant help on the timing though as I'm running a 400 block that 30 over with the stock 93 heads and stuff

    I understand the jeep thing I drive a BLAZER!!

    Ken
     

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