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Thread: timing

  1. #1
    Member CRAFTSMAN
    Join Date
    Sep 2007
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    Pensacola,Fl.
    Posts
    51

    timing

    ive got a 355 sbc w/10.5 cr,202 ported heads,305h cam,holley 750 d.p. and a strip dominator intake in a 69 chevy truck.where should the timing be???
    "RACE OR RIOT WHATS THE DEAL"

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Dec 2004
    Location
    austin texas
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    729
    36-38-40 degrees total timing

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    May 2006
    Posts
    2,044
    Some combos like more (38-40) some like less (34-36)
    It's a guessing game really, the only way to know for sure is have it on a dyno and play with it untill you get peak performance.

    Middle of the road is about 35 and a good starting point.

    Make a few passes going up and down a couple degrees and compare notes.

    Goodluck, Cp
    ***IN GOD WE TRUST***

  4. #4
    Member CRAFTSMAN
    Join Date
    Sep 2007
    Location
    Pensacola,Fl.
    Posts
    51

    timing

    thanks for the info.
    "RACE OR RIOT WHATS THE DEAL"

  5. #5
    Administrator RACING JUNKIE bjuice's Avatar
    Join Date
    Apr 2003
    Location
    Greenville s.c.
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    3,239
    charles is Right...but if you have no access to dyno...test and tune the car...normally Higher Timing is gonna be more bottom end and less top end...same with valve lash...a tight lash will have more bottom end, looser lash top end.

    in the past i would just keep inching it up until the 60 ft slowed down noticably or..keep in mind don't be fooled by Tire spin..you should be able to feel the diffference in the seat your seat....you can always feel that certain vibration when she is running crisp...


    I personally would start out with 36 and work up toward the 40 mark and see how it feels
    Bjuice..

    "I'M YOUR HUCKLEBERRY ! "


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