[Syed Shah]

I see. I always thought stock were good, but since I only know what sort of power/abuse they can take, that is all I can comment on. Any info on this Chris?

I'll try and find the weight of stock pistons, will allow us to compare with HKS etc.

Have you ever dealt with JUN/Cosworth stuff? Everyone claims they are brilliant, but nobody is using them due to cost. Venom in the US used them, and then switched to Arias IIRC.