Idle screw question. Rich or lean?

In that case, I believe the 18/19
So your doing a good job. Yur almost there.


Okay, floats level good. Idle transfers a bit more than square. I took it for a drive again, same idle dip issues and there is a stumble if I'm just cruising and stomp it, like very aggressively. And not a real bad one.

Backed idle screws out a bit, and it seems to have fixed that drop problem.

Now, the stumble problem. The car is easily drivable and has no problem with low rpm cruise, pulling away from lights hard etc. or aggressive acceleration (that's not the stomping around like 1800rpm) could probably solve it with a pump cam kit but...

I think I'll hold off on further tuning as I need to take it for top soon, and then investigate this cruise vacuum power valve selection. Seems highly recommended by Google searches. Also looking at wideband kits to really get it setup well. Don't want to order a cam kit I may not need if I get into other areas of tuning.