Who's running 9s with 2in headers?

Discussion in 'Race 400/430/455' started by hugger, May 30, 2022.

  1. BrianTrick

    BrianTrick Brian Trick

    All depends on the engine.
     
  2. slimfromnz

    slimfromnz Kiwi Abroad

    Mine made 923hp with 2" primaries and 4" non merge collectors.
    0.650" lift 270' @0.50 cam with 387cfm flowing stg2 heads
     
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  3. sean Buick 76

    sean Buick 76 Buick Nut

    videos? Sorry I forgot your YouTube name
     
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  4. slimfromnz

    slimfromnz Kiwi Abroad

    Search for FAST28
     
  5. sean Buick 76

    sean Buick 76 Buick Nut

  6. slimfromnz

    slimfromnz Kiwi Abroad

  7. slimfromnz

    slimfromnz Kiwi Abroad

    IMG_9401.png

    I added these stainless turnouts to stop the flames burning the running boards LOL
     
  8. Stevem

    Stevem Well-Known Member

    This chart put together by David Vizard should be of help.
     

    Attached Files:

  9. Mr. HEMI HUNTER

    Mr. HEMI HUNTER Well-Known Member

    My exhaust ports averaged 235, thats right about 2” on the chart. Made best power with the 2” borrowed headers. 703 hp. Made 679 with the homemade 2 1/8”.
     
    sean Buick 76 likes this.
  10. slimfromnz

    slimfromnz Kiwi Abroad

    My exhaust ports flowed
    .400 - 207.4
    .450 - 230.2
    .500 - 241.4
    .550 - 250.2
    .600 - 259.5
    .650 - 265.2
    .700 - 268.3

    Mightve made more power with 2 1/8 headers, guess we will never know as I have sold it
     
  11. sean Buick 76

    sean Buick 76 Buick Nut

    the car sold?
     
  12. slimfromnz

    slimfromnz Kiwi Abroad

    Yes it did about a month ago
     
  13. sean Buick 76

    sean Buick 76 Buick Nut

    I hope the new owner has as much fun with it as you did. Any links to the new owners page or YouTube?
     
  14. slimfromnz

    slimfromnz Kiwi Abroad

    He is actually scared of it. He wants me to race it for him LOL.
    He has a beach house where he is going to store it. He told me I am welcome to stay there anytime and he will leave the keys for me so we can go cruising in it
    I took him for a joyride when he came to pay for it. I gave it a little squirt and he panicked. So much so, that I thought he was going to pull out of the deal
     
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  15. sean Buick 76

    sean Buick 76 Buick Nut

    my goodness. That’s funny, sad, and interesting LOL
     
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  16. BrianTrick

    BrianTrick Brian Trick

    I’ve been in that situation. It’s like getting paid to drive and race your own car. He said “build it like you would build your own car.” OK. He didn’t even make it through a summer and sold it. Too much for him. The next guy was ALL-Chevy until that and it’s been one of his favorite cars ever since.
     
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  17. sean Buick 76

    sean Buick 76 Buick Nut

    Yes I helped the previous owner of my car build the 350 for boost to my specs and then when “the car tried to break his neck” he sold it to me LOL
     

    Attached Files:

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