High altitude jet selection?

[WheelinK5]

I run a 350 with a larger comp cam, edelbrock performer intake, edelbrock Q-jet series carb 750cfm, headers to 2.5" duals to 2 chamber flows.

I am having a hard time with this altitude and running too rich. I live in Denver at 5200ft and would like anyones help with proper jetting selection.

thanks for the help.

1986 K5
All stock except a fully built crate 350 and Ranchos!

 

[WheelinK5]

Top

1986 K5
All stock except a fully built crate 350 and Ranchos!

 

[HarryH3]

I'd recommend just calling the Edelbrock tech line and asking them. They should be the experts on your carb.

It's been a long time since I owned anything other than a lawnmower that had a carb, but I think Holley recommended that you drop down one jet size for every 2,000 feet above sea level.

<font color=black>HarryH3 - '75 K5</font color=black>
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[FWP]

I run an edelbrock performer(1406) on my pickup. Have it set 2 stages lean, not sure of the actual jet and rod size, but I can look it up if you want. That's for 5000 ft elevation. No problems, been running it for 3 years now. HTH

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[WheelinK5]

Thank you for the help. Edelbrock is sending me the correct jets, .070 in the mail!!

Mark

1986 K5
All stock except a fully built crate 350 and Ranchos!