hey guys im attemping to fit a gredy copy plenum to my rb25 cefiro, ive hit a major snag mainly the clutch master cylinder lol, the rear section of the plenum fouls on the clutch master, ive "manouverd" the angle of the clutch master. ive also filed off some of the plenum itself in the problem section, still no luck... any idea's? anyone come across this problem? ive thought bought modifiyin the engine mounts to sit it lower therefore clearing the plenum, however im pretty sure its running to std ceffy crossmember so id have to modify the engine mount bracket... any suggestions at this stage will be taken on... cheers