Thanks guys.
I'm running completely unrolled standard guards now, I was thinking 185 or 195's I reckon 205's might be pushing it bit!

If it's for a Mk2, then 205s are no problem at all.

185/60's safest bet for standard front arches on Mk1. rears can fit larger tyres

If you're out by 9% with the speedo, you're also losing 9% of top end! Good for dragging but not so good on the high speed ring!

I've just bought a brand new set of Rebels 13" x 7".
Appears only the Falken 205/60/13 available in Australia.
Did a search of the tyre companies and the internet and could not find the Yokohama 352 anywhere.
 
Much better range of tyres available in the US and Europe. And much later technology tyres too.
 
So I am opting to import the tyres which will be delivered to the door and for lower price than the locally available tyres.
 
It really depends on what you call "the best".
I have the Yokohama ADrive 175/70/13 fitted to my Mk2 Escort panel van (standard steel wheels) and also The Mrs 1988 Ford Laser. Cannot fault them for every day driving (quietness/wear/roadholding, wet and dry) and are available locally.

Hi Peter, any good links to share?

Hi Shaul,
 
In the USA check out:
www.onlinetires.com also
www.tirerack.com
 
The ADrive I have bought from Bob Jane tyres.
 
There are others but this is a good start.

SaggaRS
If you're out by 9% with the speedo, you're also losing 9% of top end! Good for dragging but not so good on the high speed ring!

3.54 ?

If the standard ratio is 3.9 then yes, moving to 3.54 will pick up most of the difference.

Its funny how everyone in Australia runs 205's on their 13" wheels, while in UK they run much smaller.
The Yokohama A539 were a great tyre. I believe they used to have a 205/60/13.. but i couldn't find any online. Just some 175/50/13: http://minisport.com.au/prod1413.htm
But I'm sure any good tyre place could get them.
Why don't you go the south london look and run them small? Sometimes a smaller tyre actually makes things work better  (below is 175/50/13)