Old brodix -10 heads on a 406 keep them or buy new??

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Old 11-27-2009, 04:48 AM
  #21  
wmeabates
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Did you ever try your friend's carb?Your's might be a little off leaving. Lean or rich on launch will slow the 60. Bill Bates.
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Old 11-27-2009, 07:43 AM
  #22  
cartwright454
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I have played with jetting but not changed carbs. Could be the carb? I am tuning with plugs and highest egt. thanks Billyc
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Old 11-27-2009, 09:55 AM
  #23  
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The easy way for you to know if your carb is not tuned to your set up is try one that works good on a motor close to yours.The main jets might be close but the fuel curve could still be rich or lean at the low end of your on track rpm.This can be tuned with the high air bleeds and the emulsion bleeds. Bill Bates.
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Old 11-27-2009, 11:42 AM
  #24  
cartwright454
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Well I have about 5 month to think about it. One thing that makes me think that could be it is it does need a hot plug so they dont foul. Billc
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Old 11-27-2009, 12:28 PM
  #25  
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I hope you find good from the help you got here.Let us know how you do. Bill Bates.
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Old 03-27-2010, 02:39 PM
  #26  
cartwright454
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With more digging I came up with the flow numebers from Ron's on my -10's ([email protected] and [email protected]). That puts the peek power at about 7400 way above where I want it.
I picked up a set of brodix rr200(cheep). they should work better in my rpm range. I will see what it runs soon and post the times before I make any other changes. Thanks agin for all the help.
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Old 03-27-2010, 07:53 PM
  #27  
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hey cartwright454
look up c7272 on rj member pages thats my cousin he's got a 72 vega runs low 10's with about the same set up you have he's running a 406 and a 9.5 m&m converter with 4.30 gears and 26 tall tires. look him up and talk with him i think he can help you out. bigmack.
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Old 07-31-2010, 05:26 PM
  #28  
cartwright454
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I took it to the track yesterday (7-30-10) with the brodix 200rr's and it ran 10.93@at 122. we got rained out so I could not tune it much. The exhaust temps were showing lean(jests or running out of fuel). It now pulls the front wheels and carries them out but the chassie unloads after. I now see mid 10's with no problem. Thanks agian for all the input.
Billy C
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Old 07-31-2010, 06:14 PM
  #29  
traysvega
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Originally Posted by cartwright454
yes it is driven on the street . If the converter was to tite wouldnt it mph about 130+ and the best short time and mph i have goten was with the 10" . I calculated the gears at 3.73 with the 26" tire. the gear should be the same as a 32" with 4.56. I will try a 4.10 gear next year. I have built this car very close to a buddys car every thing the same but he has a set of sportsman heads same cam same motor. he has a 4.00 gear and a 28" tire. he runs consistent low 10's. I still think it should run in the 10's with this combo. Maybe I am just spoiled with BBC'S . I had a 427 with old out of the box dart heads that ran 8.06@170 in my #2000 altered with 4.10 gears and a 33"tire. Thanks agin for all the ideas. Keep them coming. thanks bill c
Your car weighs 30 pounds more than mine with me in it.2670 vs 2700..I run a 388 sbc. NEED more Compression.Heads "could" be fuzzed up .Alittle More gear. (I run a 4.88 set with a 32 tall tire) and deff a (forget about the street) 8 inch converter that stalls 5500 plus on the brake.You car should be as fast or faster than mine. :wink:

Now...Had an old set of -8 that had lots of work done to them over the years.Supposedly flowed 301@ 700 on the intake...But the camaro was a pig. 383 13.to 1.ALL we did was swapped the heads out for a new set of dart pro 1 230 plat's and picked up 3 tenths in the 1/4 ...10.70's to now 10.40's and they have no work done to them yet. :shock:

I personally think the -8 didnt flow what he was told and the port work was just a hogged out set heads that didnt make any power. :wink:
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