
I am using Sierra wheels temporary for the SVA re-test. I intend to use 195-40-15 at the front & 195-55-15 at the rear. Will this profile difference be OK for SVA. Barry
You're building a dragster?? 
Gotta be asked - why such a difference of profile?? Dont think it will make a difference to the IVA man (unless your steering doesnt self centre due
to reducing the effective castor with the nose down attitude)
IVA just want to see legal tyres with correct speed rating covered by the arches
I dont think you will find a 195/40/15 tyre, Try a 195/45/15
I'm using 195R45/15V's all round. Got them from Black Cicles (linky) Toyo proxies @ about £40 a tyre, although I did fit them myself. They do have a fitted price using mobile fitters (I think) which is not bad either.