[David Hodgson]

My engineer did a calculation of the engine power at given revs at the gearing and wanted H rated tyres(210kph) Its only a carby 302.

There was a good discussion mid to late last year on 15" tyres on the Aussie forum. Have a search see what you find, but it essentially came down to either Mickey Thompson or Avon.

I saw at a swap meet a tyre stall that had some odd 15' tyres aimed at hot rod market. Amongst them was a 295/50-15. Can't remember now but I think the brand was maybe Maxxis or Nexen or something like that.

I wouldn't be too tempted if you find a cheaper tyre as the money you spend on good ones is well worth it. The amount the average Cobra is driven the tyres will go hard before you wear them out, unless there is a reasonable amount of track work, then its worth having the better tyre.