Stock mains are 170,180,180,170. Factory Pro mains come in sizes 168, 172,172,168 and 178,182,182,178. Usually the outer two banks are smaller than the inner two. If I'm not mistaken, those 136 mains are a Dynojet brand jet kit...someone should be along shortly to offer more information regarding the jet sizes.
DJ doesn't suggest extra holes, just larger ones. Its factory pro that says to drill a second set.
And the idea is that it slightly improves response.
^ Correct.my FP never suggested a second set. not sure where you got that from.
I made one a few years ago by attaching clear hose to a wooden yardstick. After trying various fluid viscosities I settled on Sta-bil fuel stabilizer as it seemed to give the best readings and no worries if a little gets sucked in. Last year I bought a Carbtune but am now wishing I hadn't dropped the coin. They read so close to one another... The only advantage with the Carbtune is you can do all 4 carbs at once.How good is the home made sync tool? I picked up a new stock air filter, fuel filter, and oil filter today. What is everyones thoughts on chains and sprockets. Ohh there is no extra hole in the carb slides