found this on piston heads

sva manual

thought it may be of some use

[Edited on 30/7/05 by marc n]

Excellent, thanks!

Just need to work out which bit applies to us now !!

Jason
Many thanks though Mark

Just be aware that it is only the draft version, ie there are quite a few pages missing.
Compare the index to what you have actually got.
Still very worth while having as long as you realise it's limitations.

Mick

Thanks for that.Now i nearly know what i,m doing.