Opti-spark I vs. II

[Raggs]

I'm wanting to upgrade my ignition but it seems there is not a lot of choices for the 93 with the opti-spark 1. There are plenty to chose from for the opti 2. What's the difference between the two, and can I put a 2 on mine?

 

[bill5674]

i could be wrong ..but i think the opti 2has a hook up for a vacuum line.this is suppost to help draw away the moister in the system

 

[killain]

I can't help with Opti 1 or Opti-2, but I was reading a 'CorvetteFever' magazine a few years ago and one of the writers/Mechanics, a man named Chris Petris, wrote about dealing with the Opti-spark system and how he retro-fits some of the units he repaces with a small port nozzel to which he attaches a small vacume line. Which he said helps to keep any moisture out of the opti-spark distributor?

 

[gmjunkie]

I'm wanting to upgrade my ignition but it seems there is not a lot of choices for the 93 with the opti-spark 1. There are plenty to chose from for the opti 2. What's the difference between the two, and can I put a 2 on mine?

The cam drive is deferent between the First and Second!!You would have to change some things on the front of your engine to put a second designed on it!!Easier to just vent the old stile!!

I can't help with Opti 1 or Opti-2, but I was reading a 'CorvetteFever' magazine a few years ago and one of the writers/Mechanics, a man named Chris Petris, wrote about dealing with the Opti-spark system and how he retro-fits some of the units he repaces with a small port nozzel to which he attaches a small vacume line. Which he said helps to keep any moisture out of the opti-spark distributor?

Actually you need 2 ports and 2 lines,1 from a vacuum source in the manifold,1 to the air bridge!!

 

[Raggs]

I think I'll just spend the extra $$ and get the MSD.