altitude change to effect nitro

[wideopen231]

Since nitro burns at lower AFR than alky how much change to effect tune on nitro engine. In this case it is high volume almost for load A/Fuel. 40 gpm or 28 to engine with 95% load. Lets say a  change of 500' DA what percentagefuel.Even if info is on smaller load with less flow info is always good to have.

[tcoupekyle]

Ever read spuds deal called nitro notes?

[wideopen231]

Have printed copy I read frequently

[tcoupekyle]

Cool! Couldn’t remember if he mentioned altitude changes and tuneup in that.

[wideopen231]

 A little but not answer I am looking gor. Should be something like 1oo' = x amount change either jet or mixture. Naybe some formula that uses weather, mixture and old jet at x' and y%. Maybe can find other wise was hoping Spud might check in and give some insight.