pretty much the same as any engine. burn more air and fuel and youve got more power. start with getting more air in by drilling airbox. fit a free flowing exhaust, increase fuel pressure slightly. with such and old engine an overhaul would help, stripping and cleanining the engine. you could modify the ports yourself. i dont know about norway, but in britain there are places that regring vauxhall cams to fast road or race spec for about 45 quid which is fairly cheap. is an ascona b engine the sae as opel rekord? or ist it same as opel omega? what is engine code?