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Technical Rochester 4GC specialist. ( race prep )

Discussion in 'The Hokey Ass Message Board' started by Mitchell Rish, Mar 8, 2026.

  1. Mitchell Rish
    Joined: Jun 10, 2007
    Posts: 2,435

    Mitchell Rish
    Member
    from Houston MS

    I need to know who is the best for having a Rochester 4GC carb race prepped. I usually do my own but I need know all I can and place find such hardware. ( specifically from 55-58 ish)
    As always Squirrel you are up.
     
    Last edited: Mar 8, 2026
  2. K13
    Joined: May 29, 2006
    Posts: 9,865

    K13
    Member

    Tow Truck Tom, Sharpone and carbking like this.
  3. carbking
    Joined: Dec 20, 2008
    Posts: 3,997

    carbking
    Member

    KI3 - thank you !

    However, I no longer do rebuilds due to the popularity of our rebuilding kits and the manufacture of them.

    I can provide (probably) the parts that will be needed, and possibly technical ***istance should Mitchell Rish wish to do the build himself.

    Jon
     
  4. Mitchell Rish
    Joined: Jun 10, 2007
    Posts: 2,435

    Mitchell Rish
    Member
    from Houston MS

    How much of learning curve to race tune. That and time will be the determining factor.Holleys /eld-carter/and even the Q jet I do very well with. I simply don’t have the knowledge of /or have all the little tricks/etc.
    Is there such a book /manual? I don’t mind paying at all. I simply have never used one of these other than stock form.
     
  5. carbking
    Joined: Dec 20, 2008
    Posts: 3,997

    carbking
    Member

    "Race tune" doesn't tell the story.

    Drag racing, circle track racing, road racing, land speed racing ?

    Carburetor being used ?

    Sanctioning body rules ?

    Engine size, max RPM, RPM range being used, vacuum at idle ?

    Basically standard questions regardless of carb being used.

    Give me a call during normal business hours.

    Jon
     
  6. Mitchell Rish
    Joined: Jun 10, 2007
    Posts: 2,435

    Mitchell Rish
    Member
    from Houston MS

    Drag Racing.
    But will give you a ring as soon as I get back from this road trip.
     
    Tow Truck Tom and Sharpone like this.
  7. AHotRod
    Joined: Jul 27, 2001
    Posts: 12,416

    AHotRod
    Member

    Stock or Super Stock cl***es?
     
    Tow Truck Tom likes this.
  8. 5096PS
    Joined: Oct 8, 2009
    Posts: 29

    5096PS
    Member

    I've run 220/283 4 speed for a long time, set National records multiple times in O and P,,,won cl*** every National Event I went to, including cl*** wins at Indy multiple times, It's not cause I'm smart, I'ts cause I've been blessed to have really good people helping me, the credit goes to them, I will say, as far as 4GC's, stock and super stock, Dean Oliver from Stuttgart Arkansas is the go to guy for NHRA racers. Deano's Carbs are consistently the fastest carbs in the cl*** racers group. And, Dean is one hell of a guy, drag races himself, a K/SA Malibu. Hes fantastic at Q Jets too. Again, I cant tell you how many really good people helped me on my car. I'm building a 61 215/283 stocker right now, its the small carb like your car would need I think, all the X frame guys I know with that little carb use him also. Interested in what your building, sounds fun. Good luck.
     
  9. Mitchell Rish
    Joined: Jun 10, 2007
    Posts: 2,435

    Mitchell Rish
    Member
    from Houston MS

    Jr Stock.
    I am doing inventory on everything that came with this car. It runs well now. I am simply trying to increase my knowledge of this carb past basics.
    The Road trip I took to Texas was to pick it up. I am amazed at just how well a factory iron intake and this carb seem to respond. Let me get through this inventory and I’ll get ready for the learning curve. Thanks for the references and sources. I ***ure you I’ll use them.
    Jon give me a little time. I’ll contact you. I won a learn /understand all I can about these.
    Mitch
     
    rod1 likes this.
  10. Mitchell Rish
    Joined: Jun 10, 2007
    Posts: 2,435

    Mitchell Rish
    Member
    from Houston MS

    I am the new care taker of the Kyle Marshall 57 sedan delivery. 3151882322409936725.jpeg 3151882322409936725.jpeg
     
    RAK, bchctybob, overspray and 3 others like this.
  11. Mitchell Rish
    Joined: Jun 10, 2007
    Posts: 2,435

    Mitchell Rish
    Member
    from Houston MS

    I like being as self sufficient as I can but again other than a stock version I’ve never used one of these carbs. I am impressed though with the crispness and response of the carb Tim put on it.
    Time to increase the learning curve again
     
    bchctybob, rocca and rod1 like this.
  12. overspray
    Joined: Jan 14, 2003
    Posts: 1,454

    overspray
    ALLIANCE MEMBER

    What is the best 4GC/4jet for performance? I have a box full I have collected including one off a 1963 401 Buick.
     
    tractorguy likes this.

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