"Baselining" my 225

newer head for sure. @halifaxhops has some NOS plug wires...? Just get an old 1bbl air cleaner, Ill check to see if I still have my old one. Newer carbs usually are jetted to run leaner and have a bunch of ports on them. That exhaust manifold is newer than 65 with all that ribbing...Those new carbs are foreign to me. Intake look early with no PCV base. I like the location of the fuel filter. Those hose clamps hovering over a hot exhaust manifold always scared me. Your manual choke should pull on, pump the carb once and then turn the key with no added gas. It should start right up pulling pig rich for a minute or so, then let off the choke maybe half way or all the way and blip it again. It should settle to a low idle. Im not sure if that carb style has a manual choke lever to that divorced choke well.
(wrote this yesterday but forgot to post it until now!)