what all is needed to do this,i obviously know the vented opti spark,but what else,i think you need the vacuum harness that is part number 12555323,is there anything else,is the timing cover any different,and is there anything i'm missing

 

Timeing cover, intake elbow, camshaft, and timeing set i believe.

 

ok,i have the elbow,i'll buy the cover and timing set,what camshaft do i need to get,this sounds like its going to be a PITA

 

http://para.noid.org/~muttvette/opti.html