ok ive just decided since i guess i only replaced my "cap and rotor" on my opti (i guess there is sum metal peice or sumthing that didnt get replaced) that im gonna go and buy the MSD Pro BILLET optispark and i guess that has all the peices. so hopefully that will fix my 3000rpm misfire. so has anyone or does anyone know how much better they are than the stock ones? or just the regular MSD cap and rotor? cause i hope that fixes my ****.

 

I dont know about the MSD ones in particular, but I do know that many people complain about the opti on LT1s. This is not even just for Camaros, but Corvettes as well- I heard so much about them when i owned one. I am guessing that it is an upgraded version, and MSD is trustworthy.

 

The MSD is about the best you can choose for an opti replacement. It comes at only 100 bucks more than the crappy GM one, and it's better quality(I believe you can also advance the timing a bit if you want to, but the computer automatically does that for you anyway, but it's there, so it makes you feel better!)