1/17/2020 Update: Took my truck out on another 30 mile round trip stint. Runs beautifully with the UN2 Carb. I tried the two things that were suggested to me, one, run the engine without the air cleaner to see if it was too restricted, two, I also backed of the fast idle screw a bit more. I was originally at 6 3/4 ill say 7 to keep it rounded. so I went back in whole turns to notice the difference I kept going to about 11 turns out and then notices a bit of fuel coming from the adjuster screw, I guess I went too far, so I backed it back in. I can say now with confidence that this carb has the same or just about near the same power as my Rochester in the top end. The idle is better for sure, and the low end torque feels as good or better. That coupled with the fact that its a new carb gives gives me confidence in my purchase. Now just to wait and see how it keeps up as time passes. Also, we'll see how much gas mileage it gives me, the same, less, or more. So far so good.
Last edited by ClassicsR4Me; 01/17/2020 11:22 PM.