Just for the ease of adjustment, progressive would be better, but it really shouldn't make much difference if everything is set up correctly.
Try and find three carbs with the same ID numbers. There are so many different ones out there that look the same but are different inside. Run one at a time on a stock intake till you are happy with it, then switch to the next one till you have all three running equal. With all three at once, its very hard to tell which one is acting up. Jetting should be just the same with all three.
Be prepaired for alot of tuning and fine adjustments. Don't settle for all most! Joe
