might seems a little obvious but i would like to know a few things about a15's.

backstory!
- picked up an a15 down here in tas and its currently sitting in he corner of the shed doing nothing but gathering dust.
- i dont have anything to put it in just yet
- looking at this 1200 coupe which is completely stock! (and auto.. eww.) matching numbers and all.
- would be using it as a daily.

so question time!
1. when was the a15's made?
2. because it is made in 19xx year, does it need the fuel additive? (like this stock coupe does and its a bitch!)
3. would it be wiser for the resale value of the coupe to keep the original motor (and just change it to manual) or put the a15 in?
4. obviously performance would be beter with the a15, but by how much?
5. would it be beter just to weber, extrator and what not the a12 and sell off the a15?
6. anything else?


many thanks in advance!
J

ps - i love my numbers!