whats the diff between vented and nonvented opti's
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my 94 i beleive came with a nonvented opti can i run a vented? the vented are cheaper and seem more durable. i need to buy a new one and need some info!
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If you have a stock cam you will also have to change that out, or have the hole in front of it redrilled. Aftermarket cams already have the bigger hole. You could also get the MSD for '92-'94, it's vented. Here's a link on what you need to change over if you don't go with the MSD.
http://para.noid.org/~muttvette/opti.html
http://para.noid.org/~muttvette/opti.html