would a holley 830 hp work for this?

Discussion in 'Street/strip 400/430/455' started by paul c, Jun 12, 2010.

  1. paul c

    paul c Well-Known Member

    i know i posted about a 950 last week and all recommended an 850 cfm unit. well i have another trade option for an 830 hp, do you guys think it will fit the bill. my combo will be a 455 .038 over 10.0 to 1 comp., iron 70 heads converted to stage one and some port work (blending the bowls and port match the intake), sp1 intake, ta TA_286-08H cam .500 int, .504 ex, 234 int, 248 ex, 112 lsa, 1 7/8 long tube headers into a 2.5 magnaflow exhaust w/ x pipe, msd ignition, th400 with a 2.75 first gear and approx 2800 rpm stall, 3.42 rear gear and a 26" tall tire. car will be street driven and once a year to the track. i will be trading away a bg king demon and will get a carb and cash in return. thanks in advance, paul c.
     
  2. BuickRacer69

    BuickRacer69 1320, Mark of the Beast

    I had a holley 950 on my 350 Buick. It was a pretty mild street combo and it loved it. I do not think a 950 will be to much for it. It might not be the best for gas milage, But for performance I would say DO IT!
     
  3. sailbrd

    sailbrd Well-Known Member

    The 830 hp is a very good carb. It is really a circle track race carb. The Nascar teams make 850 HP with this carb. I was able to borrow one for a while and it rocked. Was as good or better than the 950 hp.
     
  4. Yardley

    Yardley Club Jackass

    As was said before, anything over 850 cfm and the fuel curve will be too rich and you'll just waste gas. The 830 should work fine.
     
  5. supremeefi

    supremeefi supremeefi

    Sooo 20 cfm will have that much of an impact, don't think so.

    Maybe just install smaller jets? Have a 830 Quick fuel on my friends 455 Olds, perfectly flat fuel curve. A little tuning will make it work. Go for it imo.
     

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