Quote:
Originally Posted by xpndbl3  Pop N Wood, I'm guessing you don't know much about carbs. Having an adjustable rear jet in the carb only allows for more precise fueling than a vacuum secondary carb. If the idle circuits are too rich then you can turn in the idle mixture screws or just put a piece of welding wire into the idle circuit in the metering block, etc to lean it out. Chancing idle air bleeds will do the same thing if yours are adjustable like a proform, quick fuel, etc is out of the box. I would recommend going to a local library and taking out a book on holley carb tuning or buy one from borders or the like. It along with a wideband 02 tune will prove to be the best investments you can make. |
Well I won't argue with you on that one, but I am learning. This site is a big help.
I do have a couple of Holley books. That is where I learned the trick of putting the wire into the idle orifice. Even with that and the idle screws at a half turn, my wideband is showing me rich at idle and dropping lean with light throttle. I have the accel circuits set such that I don't go lean with a big shot of throttle. Once the weather warms up I will try some thicker wire. I am finding it a little hard to check the WOT settings, cause 110 mph comes up too damn fast on this car. I still need to check the idle vacuum to make sure the power valve isn't contributing at idle.
I don't wan't to change out air bleeds, because the Holley books are saying that is a good way to ruin a carb. They also say it is a pretty good indication you have the wrong carb. I am starting to think maybe a bigger cam will make the carb just right
There is a good bit to getting the carb right.
I still think a vac secondary would be a better choice in this application.