I have a recently removed non-vented opti-spark from my '94 Z-28 for sale for $125. It was removed/replaced on my car due to attempting to trace a miss that ended up being the MAF vs. the Opti (ie so this one is just fine).

Thanks

 

do you still have the opti? How many miles are on it?

 

Thanks for your interest, but the Opti just sold last night on E-Bay... Sorry...