They should be, the last set that I did, I got them vapor blasted , they were in about 8 or 9 separate pieces so they were done both inside and out The inside looked as clean as the outside. The fellow that did the vapor blasting on mine also ran thru his ultrasonic cleaner to make sure all passage ways were nice and clean. They have been on the car for over a month and everything works like it is suppose to, nice cold start sequence, 900 rpm at idle when hot, purrs like a tough kitten. Pulls nice and strong with no hesitation. On cruise, the engine just motors on. Used both my balancer and Gunsen CO tester to set them up. You can see in my post carb candy.
These carbs run really well when set up properly. Be patient, go thru the procedures step by step to set them up. Really make sure that all linkages are smooth and do not hang up anywhere. This car that I just did used to be an automatic so it had the spring loaded one linkage bar which I got rid of and made up my own with 5mm rod and the ends got from Centerline Alfa parts. Nice metal ones with the clips inside them. Jam nuts from Belmetric.
Been doing these carbs for over 35 years and each set have always run really nice after rebuilding and setting up.
Thanks, Rick