can anyone surggest anything ive got a 2.0l zetec running omex managment 600 a stage 3 head race cams and thrrottle boddies jenvey but it has no power on accelration ive chaneged the ignition leads and it made it a bit better what should i try next, it was re-mapped and it has 190 bhp but dont feel like it

 

Have you just had it remapped, or has it been a while, ie did it feel ok after remap but has slowed down, or just never felt any good.
A decent mapping session should get the most out of it, so unless something has changed that's the way it is.
tabetha