So if i'm tending to have to turn the needles out too many turns then go up with the smaller jet? Right now I'm running 90/125. you think go up to maybe 95/125 and I should be able to have the needles at the more normal 3 or so turns out?I tend to think that unless you are doing full throttle plug chops it will be the 78 jet that may need to go up a size or two.
Not sure about that. I think that copper and brass are a better conductive material than aluminum. Yes try the 3 turns and see how it rides and how the plugs look. I agree with what the guys posted earlier that it's getting a better spark with the brass rod and burning fuel more efficiently. Since I have done away with the H-pipe and airbox I think that if I want to continue with the brass rod then I will have to rejet yet again and adjust the needles from there. Assuming that you have a stock set-up then adjusting the needles should be all that is required for your situation.thanks so much for the follow-up. I appreciate that you closed the loop for me. I think I am close and might adjust to 3 full turns out to see what happens. This sort of shows how the Brass Rod Mod can affect the burn. I wonder if repeated with an Aluminum Bar, if there would be a difference?
interesting. Considering the small length and diameter of the rod we are using it probably doesn't really matter what is used in this case. I don't know how you would even be able to tell the difference if you tried aluminum or copper. Maybe i'll throw some aluminum in there just for the heck of it.