Anything and everything Spitfire.

Hi,

My first post.

I have a 1970 Mk3 with bolt on hub adaptors and 4 1/2J X 13 60 Spoke Wire Wheels.

Anyhow I am having no end of trouble with my wheels, and I just wondered if anybody can tell me

a) The best / original tyre sizes - Currently have 155 / 70 / 13's
b) The correct tyre pressures - I assume 21 Front 26 Back
c) The correct alignment data - surely these change a little with bolt on hub / wire wheel combos and size of tyre?
d) Someone as near to Colchester, Essex who can actually balance wire wheels - I'm fed up with the shakes!

I'd appreciate any help.

Christian