holley float levels 4500 ft+

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Mar 28, 2008 | 09:59 PM

Kuskoal

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From: Sparks, NV

holley float levels 4500 ft+

this is a question i asked in my carb jet post, but nobody replied yet. What should my float be adjusted at? 4500 ft+ in nevada

Mar 28, 2008 | 10:58 PM

kermmydog

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From: Western Central NV

Is it an internal or external adjustment? Is this the same 4160 Holley. You can PM me if you need further help. I don't think I would go to .060 jets. What engine & year are you working with.

Mar 29, 2008 | 12:24 AM

Kuskoal

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yup same 4160 with external adjustment, havent installed new jets yet, will saturday when i has free time. just wondering if what my dad says is correct "the fuel should barely touch the threads of the site plug" true for this high of an elevation? also what about the rear float? it's a 1981 f150 with a 302

Mar 29, 2008 | 02:51 AM

kermmydog

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From: Western Central NV

Quote:

Originally Posted by Kuskoal

I set mine just a tad bit below the point your dad says. As a rule what he says is correct. I just find setting a little bit lower I don't have any chance of flooding. That is with both floats. With a stock 302 you might get away with .060 jets. I run Maxi Jets that I get from summit or Jegs. Maxi Jets use a true drill size Example: .060 is a #60 drill. Holley doesn't follow that. If I remember correct .061 & .060 are both .060 in hole size. The .622s that you have are a more accurate sizing. They flow with closer tolerances. Maxi Jets are the same close tolerance as the .622s. Why do you want to change the jets. If it runs OK just leave them. In tuning a carb you can lean it out too much. If your seeking MPG install a QUICK CHANGE secondary housing & spring kit. Again you can run down to Sparks to Summit & walk out with them. & go to a stiffer secondary spring. So the secondaries stay closed longer.
I'm not clear as to what you are trying to accomplish.

Mar 29, 2008 | 10:21 AM

Kuskoal

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From: Sparks, NV

alright i'll lower them a tad bit more.

What i am trying to accomplish is: my crb is set for sea level operation my dad tells me (he got the carb at a swap meet). what he says is true, i'm making the carb climatized for high elevation operation.