[RAlll]

Here is what I have done and it works great. Get Eastwoods metal wash. boil your carb bodies in the metal wash for 30 minutes. then bead blast the exterior.I then boil it again in metal wash. after that I bake it it an oven for 30to 45 minutes at 225F to remove any moisture.Let the parts cool. Then I bead blast it one last time. I take one gallon of distilled water at between 80 degree F and 85 degree F(any hotter or any cooler the results were not as good).I add one tablespoon of teh yellow chromate to the gallon of distilled water and dip my parts in the solution(stirred well 1st) for 30-45 seconds.then hang and air dry. seems like a alot of steps but after many,many tries this is what has produced my best results..