Rich, I don't know if you have ever tuned a motorcycle carb, but tuning an Eddy is the same thing. The metering rods (needles to us old timers) are for fine tuning mid range and low end. Having said that, you do have to have the correct metering rod for a jet range, which I am sure you picked up from the book. You mentioned it stumbled at wide open throttle. At wide open, the needles are out of the jets, so get it running at WFO and pulling strong by playing with the secondary. Then start playing with the needles and the primaries for low end and mid range. Keep in mind the temp range where you live. If you tune it on a 60 degree day with low humidity, it is going to be a bit fat in the summer. In Salt Lake we get ranges from 0 to 100 degrees. I like them spot on for about 75 to 80 degrees. Seems to be a good tune for large swings in temp and humidity for street driving. Earl -----Original Message----- From: Richard Kinsley [mailto:r.kinsley@xxxxxxxxxxxxxxxx] Sent: Monday, April 16, 2007 7:40 PM To: 1962to1965mopars@xxxxxxxxxx Subject: Another carb change Rich Kinsley '64 Polara 4 dr 318poly w/goodies I got all excited after the last message I sent so I popped down to the garage and changed out the metering rod springs in about 3 min.. I put in the stiffest ones, plain. If it starts good and the weather is good I'll drive it to work tomorrow and test it out a bit. More later. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.