jd jet kit 03 ec300 stock

[emol]

ok just purchased jd kit for my 03 ec300.tomorrow gonna play with it.riding from 2000ft to about 5000.i will follow jd instructions.but any input would be apreciated

[jhendr3702]

I would think with a jd kit, you will be fine. I was shocked when I opened up my 01 300 when I did a ltr jet kit. Mine was jetted oe for leaded gas...
It had a 35 pilot in it, which I had never seen before. I am about the same altitude as you and have been switching between a 42 and a 45 pilot. The ltr kit came with a 45, which I (insert dummy here) thought would be too rich, but seems to be fine. I think the main is a 170 or 175, don't remember for sure. I am running the oe needle, center clip.