Re: Need advice, Gurus - GM Opti, MSD or Dynaspark? |
Subject: Re: Need advice, Gurus - GM Opti, MSD or Dynaspark? by teebee on 2010/5/11 22:12:36 Well, it appears that you have made your decision, but here's my .02. I had a seal leaking in the front of my 94 and when I took everything off to replace the seals I decided to replace the opti and water pump. I bought genuine GM parts... within 4000 miles I was having issues that I couldn't track down with rough running, sputtering, etc. Someone suggested the opti, but I discounted that because I had a "brand new one". Well as it turns out the opti cap was crap...carbon arcing all over the place. Instead of just buying a cap and rotor, I bought an MSD and installed it. I was totally impressed by the quality of the MSD unit. Mine had the 'square' O-ring. It was running like a champ the day I traded it off. |