Is there any Old Skool tips and tricks to synchronizing a pair of carbs? Are the synchronizing tools necessary? Is there something that can be home made to replace it? These are side-draft Strombergs (CD150's) on a 4-cylinder motor. I'v got it running pretty well, good throttle response, good idle quality, but I'v never messed with dual carbs for street use before. Do I even need to bother?