Non Vented To Vented

[awp944]

I know you need the timing chain cover,optispark,different cam...What else??

[JoeliusZ28]

Im not sure if the timing set is necessary but the rest definitely is. If it is its just the cam gear, but might as well do a new set anyway. you also need a new opti harness: http://shbox.com/1/opti_vacuum_harness.jpg

here's another option:
http://www.corvettefever.com/howto/16758/index.html

[JoeliusZ28]

Ok found the link i was looking for:
http://para.noid.org/~muttvette/opti.html

[awp944]

Thanks!!

[JoeliusZ28]

no prob!