My buddy has an 81 pickup with the 20r and the carb needs rebuilt. I was wonderin what rebuild kit yall would use. I used the GP Sorenson kit from AutoZone for my 22r. Not the best one I think because I already had to replace the AAC with a TOYOTA one. I have heard that the Jap kits work a helluva lot better than the American made ones. Anyone know about a difference or what they might prefer over any other?