I own a Volvo 850 2,5 10v from 1995 but i think it is a little slow. My thought was that i could change the cylinder head from a 10 valve to a 20 valve and this was get 170 hp out of it. is this tuning even possible ? are the 10v and 20v engines completely the same except this cylinder head?
I hope you guys can help.
I hope you guys can help.