matt,s rally cams are usually cut from blanks, so direct fit reprofiles need custom shims to suit ehgot them from Matt Humphries don't know who reprofiled them.
keep us posted ehIf you use reprofiled cams you can fit the K12 valves which are the same size but are 2mm longer enabling you to fit the standard shims.
I know someone who has changed the 773's because they didnt have much go . Will know what his second choice will be like after the weekends dyno session.
I plan to get the timing chain change when I get the new cams fitted. Was wondering is this timing chain kit any good:
http://www.ebay.co.uk/itm/TIMING-CH...arts_Vehicles_CarParts_SM&hash=item35c2aab955
Seems quite cheap.