Alex,

Dont do it!

Ask Dave Griffiths at Interpro about the saga when they fitted BD10's to my Bailey Saph engine (it was running STANDARD CAMS)........With the BD10's fitted I "lost 22 BHP and 28 ft LBS torque, verniers were fitted and dialed in correctly etc

The next day Dave fitted the STANDARD CAMS back in (no vernier required as thay had offset keys) and as if my magic all was well again: 408 BHP with 396 ft LBS on 26 PSI boost!