Olds J2 jet size? Anyone know?

Anyone know what size jets are used in J2 tri-power carbs? Or what size I should use in them if I have a hot cam in my 371? Any help much appreciated! And yes, I googled it, searched here, and checked my Olds manuals. Thanks, Daniel

 

Wouldn't that depend on your location, al***ude, also?

 

With TODAYS GASOLINE 62"s in the middle and 58's in the ends.......Its not 1957 anymore

 

According to the Rochester service manual-
1957 Size/ Part #
Primary .058 7002658
Secondary .059 7002659
1958
Primary .059 7002659
Secondary .065 7008665
http://www.newagemetal.com/pages/Oldsmobile/49-65/49-65part2/index.htm

 

Thanks guys! And Tony, thanks again for the advice!

 

You need a Jet that flows about 1.0398 times the original jet for E-10
So an approximate scale would be about 2 jet sizes.

A/F and F/A (Fuel Air Ratio)
E 10 14.08 --.0710
No E 14.64 -- .0683
Correction Factor 1.0397 for E -10



Adding Temp/Al***ude.

Temp/Alt Factor * Fuel Factor = Correction Factor