how set points and timing on 76 15hp

[mfrench0609]

i new to this i got a 15 hp chrysler 1976 152hb model was not getting spark oulled flywheel to discover mud dobber nest so i had to pull parts to clean them i have put it back together i got spark i need to knw how set the points correctly and where timing makrs are if ther is any web site of diagrams that get or if the manual online great or if you can explain it to me in simple terms lol me and my son cant wait to get it on the water also i not sure which wire goes to which cyclinder 1 way if i prime plugs i get back fire