I could use a little more description if possible to the sync explanation in the next paragraphs I have all the test equipment required except the tool to test tdc.<br /><br /><br />Timing Event One - throttle pickup.<br />As the throttle is advanced, the spark timing advances toward TDC and then to before TDC. As the timing is just passing TDC the """"1st(minor)throttle pickup should hit"""" and start to open the carbs. Use the timing light. Adjust the tang or trigger screw to make this a reality. All of them are speced different, but if the 1st pickup hits at """""3-4 degrees BTDC advance"""" - you win. Use the timing light with a friend cranking it to complete this setting.<br /><br />the way I read this is with someone turning the engine over with the throttle fully closed my timing light should be flashing on 3-4 degrees on the flywheel. on a 115 1976 6 cyl do I adjust the left or right screw that turns the distributor cap? left being closest to the carbs.<br /><br />Timing Event Two - max advance.<br />As you continue to advance the throttle the timing will advance while the carbs slowly open a bit more. The next adjustment is max advance, this is the point where the distibutor (or trigger) can advance no more. Set the max-advance stop to 21 degrees for "direct charge" inlines and 34 degrees for the older crossflows. Use the light, - err to the side of caution.<br /><br />I read this as I open the throttle the timing will advance to 21 or 34 (I don't know which.) when I open the carbs to all the way.<br /><br />also is it normal for a small amount of gas to get in the catch tray at the bottom in front of the carbs when starting?<br /><br />I have a book but it is a little more greek to me at this time.<br /><br />pictures would be great but an explanation of what I am adjusting or rather which screw I am adjusting would be great.<br /><br />thanks a million to those who read this through and say "wow doesn't he understand anything what an idiot". then still help me.