Firstly.....I've read and re-read, all four posts, that you have made about your 2N!!!!
BTW:.....I like yer paint job...Looks nice!
A couple of observations, in yer statements, in the posts:
#1.....If you have to have the distrib., advanced all the way, to get yer engine to run even half-way good......then you have something wrong, with the distrib. set-up!!!!!! IE.....advance weights not right/free to work under the timing plate,.....worn bushings, for the distrib shaft.....improper setting for the points...ETC.!!
FO-4 manual tells you where to start.....(as in this pic.)....:
Your timing plate should look orientated, like this....after you set the distrib. as in the first pic.......:
setting the floats, in the M/S TSX carb., should ALWAYS be set at, 1/4"!!!! Anything higher or lower, will NOT insure the fuel level, inside the carb. bowl!!!!
Easy to set, with a 1/4" drill bit, on top of the gasket, and under the float...(Make sure to get the float level.!!!!!
Center of this page will show you how!!>>>>
Speaking of carbs....here are my settings that I use to set a carb up after overhauling!!!! YES, I do know that you will not have a RPM meter, on your 2N.....you just have to have a good ear!!!
If these setting do NOT help ya get rid of the high throttle sputtering, take a good look at re-setting your distrib.!!!............:
OH YEH...........You really should take a compression test on yer engine......especially if you want to get top $$ for the 2N!!!!!!! The buyer is gonna want to know!!!!?????