Carbon canister on top of fuel tank Options

[356drb]

The fuel tank change occurred in April/May 1974. The carbon canister moved off the top of the fuel tank prior to this change. Was it at the end of calendar year 1973 or at the model change in the summer of 1973?

[wonkipop]

pretty bloody obvious from where i am standing.
having renewed fuel system on a jan 74 build (last week of jan).

you don't have to run a dirty fat pipe from air cleaner to charcoal tank through length of car. instead just a tiny small diameter line from charchoal tank to fuel tank through central tunnel if you put the canister in the engine bay.

only thing i would say is why did they not think of it sooner.
california had them bamboozled? the whole emissions scenario was intense and happening fast? like it had everyone bamboozled in order to clean up their acts.
it was on the fly and they were making it happen. a bit like now with co-vid.

you pick an appropriate moment to swing over.
train your production line workers to do the flip.
send them home for xmas and brief them when they come in the door for the new year.

you have xmas and you have the summer break.

and you deal with california and all the problems they kept on bringing to the table at those two times, if you can.

but i think in this case - its not about a reg change, usa already dictated sealed fuel systems, its about $, a penny here a penny there.

ps.
what i meant to say is i have an early build 74 1.8. they move the canister to the engine bay over the 73/74 xmas break. nothing to do with model years? everything to do with factory shutdown.