. Primary jets per engine size... 300" #60-62 ... 350" #64-68 ... 400" #70-74


. As a ball park figure... depending on engine build and focus of MPG vs Power... may have to experiment to get the ideal size... when dyno tuning with a O2 sensor on each of 8 cylinders, may end up with a different size jet for all 4 corners of the carb...


. Secondary jets or plate may be about 6 numbers higher to match the primary jet size + power valve...

 

Thanks for the info. Not going to dyno the engine so I'll just have to use your info and see where it gets me.

 

I'm running an AED wideband meter, called the Failsafe. It is a wonderful tool for tuning and only cost about $250. Sure lets me dial in a carb easily.