Hi.
I've got a westfield with red top cos engine in it, that is compleatly standard!!!!!!
I understand that a stage 3 conversion will cost about £500 and create about 300 - 340bhp. I cant upgrade the turbo due to space and don't realy want to have to change the gearbox unless apserlooply nessersary.

with these two things in mind what is the highest bhp I can acheave and whats involved and how much?

I understand that I would have to upgrade the head gasket and fit some group a head bolts how much would it cost to do this two items?

What power would the standard cluch take befor blowing up??

Any idears and rough estermets on costs would be apreceated.

Thanks jamie