I appologize for not sharing the make of the carbs. They're Rochesters, sitting attop a mildly built 350 Chevy. I didn't build the engine or the carbs, everything is still almost off the stand rebuilt. The engine has been run before I started looking at it. I went over to check it out because it was real rough, # 5 & 7 were crossed, and the engine didn't have a timing tab on it(oversight?) and the dwell was of. I set the dwell, and guessed at the timing first, then he went and got a tab, and now the timing is 36 total timing. The linkage is set up with the center hooked to the front with one rod and another rod going to the rear from the front. The piece going to the front from the center slides through a guide and there's an adjustable "stop" to tie them all together when you want the others to come in . Hard to explain without a pic. Thank you for the info, I'll read it thoroughly before I go back over there. I'll keep you'uns posted on the progress.