Quote Originally Posted by 34_40 View Post
All great comments and suggestions above.
You really need to develop a "tune-up", even plot it out in a graph if you can, you must know what the AFR is across the rpm range, And I'm not talking about 4000 rpm or 7000 rpm.. but your "normal" range. You really need to establish a baseline and then test and tune the problems out. I'm not overly familiar with your setup (cam / heads etc.) but I'm not a fan of "extreme" components generally. But that's just me.

I'd try re-adjusting the needles as Jerry suggested above. Perhaps just do the fronts and see how it reacts. Also move the timing up some and see how it reacts to that. But note the changes and the results - if it reacts badly then you can save yourself a step instead of repeating the mistake.

Also, do you have a target AFR in mind? I ask because I'm curious if you'll settle for something close or are you trying to reach a goal.
Thanks for the input! I'm not too sure about the cam choice, I bought it before I knew I was installing a supercharger; it's possible I will change it out in for a different grind.

I'll take some more detailed notes on the weekend (if the weather isn't too awful out), that's good advice.

As far as AFR, I'd like to see around 13.5:1. It's running so rich right now that it's an absolute pig on fuel (I never thought a 350 with a 6-71 would be good, but this is just atrocious); I also believe it should operate better around this AFR.