UPDATE...Worked on the main metering block today. Managed to cut the threads deeper, enough now that the Power Valve fits tight when installed. Swapped out the Edelbrock 600 today for the 570 Avenger. Engine started easily, idles good and the throttle response is much better than the Edy.
Also installed a new fan shroud and the Mopar Performance viscous fan assembly. Took the Cuda out for a couple of short runs in the heat ( 92 degrees and very humid ), engine never ran over 185. Need to make an adjustment on the accelerator pump, but overall was much crisper with this carb.Going to put some miles on it this week, and check the plugs to see if the jetting is close. I suspect it may be a little lean with the Comp 268 cam in it now.
