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Thread: Jetting a 950

  1. #1
    Senior Member MASTER BUILDER
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    Nov 2005
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    Mobile,Al.
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    Jetting a 950

    what would be a good starting point for 4150 style 950 carb.front and rear pv blocked.motor is 509 cid, elebrock rpm heads, 10.5 comp,5.13 rear gear,2500 lb car,run 1/8 bracket race.

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    May 2006
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    I'd say 88's sqaure and read your plugs after a shake down run then work your way up or down depending on et's, but either way you go I'd stay square.
    Your gonna want it a tad on the lean side for consistancy.
    ***IN GOD WE TRUST***

  3. #3
    Senior Member MASTER BUILDER
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    Nov 2005
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    Mobile,Al.
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    Thanx for the reply.Where is southaven? i live in mobile,and race some at hub city and battlefield raceway.

  4. #4
    Senior Member RACING JUNKIE
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    Quote Originally Posted by cepx111
    I'd say 88's sqaure and read your plugs after a shake down run then work your way up or down depending on et's, but either way you go I'd stay square.
    Your gonna want it a tad on the lean side for consistancy.
    I AGREE. I had a 950 HP when they first came out and it was 78 square and I took the rear power valve out and went to 88's and my plugs were always nice and brown...but I never shut it down at the finish line either...but It ran well.

  5. #5
    Senior Member RACING JUNKIE
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    Quote Originally Posted by contagious
    Thanx for the reply.Where is southaven? i live in mobile,and race some at hub city and battlefield raceway.
    Southaven is a suburban city just south of Memphis, Tn in north west Mississippi I.E.> God's country....
    ***IN GOD WE TRUST***

  6. #6
    i have a 950 hp i have 78 in the front with a 3.5 high flow valve and 88s in the rear and a plug runs perfect


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