A few issues to work on..

[Nich]

Humm.. maybe I should get a new inlet manifold with a belt on it?

I have heard kenne bell make a good one?

I thought David made a good point here;

... more important though is to get your full membership sorted out, since I just noticed you still haven't done that, and not being "green", will be unable to read most of the vast amount of advice here you obviously need, in threads which are closed to you. Same applies to your questions in post #11, I'm afraid.
My £50 MGOC renewal just plopped through the letter box, obviously far from welcome, but worth every penny for the full Two-Sixties access.

All of the relevant information is on the forum, available to full members, if you seriously want to sort this problem then you need to get your questionnaire back to Tim and join the MGOC. That way you can do the research for yourself. Simples!

Nich.