I think jamsport have fitted cosworth cams without uprated springs but mountune piper cams aren't as aggressive i don't think (think the highest they can go is about 270bhp) but they change the valve springs aswell for peace of mind. I think someone else may be able to explain it a bit better than me
Do you know what the inlet & oulet of the ones jamsport fitted?
nah i don't I'm afraid mate but could be worthwhile dropping Jamsport an email and asking
_________________________
Poppy:
Tinted third brake light
DMB Badges
Mountune pas cooler
Painted Calippers
hose covers
MR200
Mountune billet arm
Front Strut Brace
35mm eibachs
Mountune big brake kit