G'day Damian, got a chance to have a good look through your build thread today and noticed your post in relation to accessories drive system. Of interest I have converted my 304 efi engine to serpentine drive belt with air con and power steer. Its in my Torana but may help with your setup. One serpentine belt drives my A/C compressor, water pump and alternator (6pk belt). And the second serpentine belt drives the type 2 Saginaw pump, also 6pk belt. works exceptionally well nice and quiet and no slippage. Its much tighter to get it all to fit in a Torana than a WB but might give you some ideas. I purchased a serpentine pulley kit listed for a 350 chev (long water pump) from summit racing and was easy to adapt it for the Holden engine. I also used the original compressor bracket from the done VS clubsport commodore. slightly modified it to suit the Sanden pump with 6pk pulley.

Keep up the good work,
Lenny.

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