Cross posting is not quite a "no no " here, but cross posts are not really needed. The Factory Original forum is really for quite specific questions and discussions about trying to keep an Alpine as close as possible to the original Factory configuration, using as nearly original components as possible. No need or benefit to post a general question about Alpine repair and service there. Unless, of course, you were looking for a machine shop that was still using 1960's tools for some greater level of "authentic" machining.
But then, once machined outside the factory, it's no longer "Factory Original" is it?
Most general questions are appropriate to the "Stock" forum. There you will find discussions about general repairs, fixes, Carb changes, tranny upgrades, electrical upgrades, improvements, etc.
"Modified" forum is generally for people who change engines, V6, V8, rotary, Ford 4 cyl, etc, but you'll also find tranny swaps, carb swaps, etc. So just post once, that's enough!
And if you are looking for parts, use the Parts Wanted forum
Tom