just like stated, my 383 is just about finished and im swaping all the parts over. my question is will the GM opti hold to 6600-6800 RPM's which will be my redline. I just bought a new GM opti last year and would like to save the $500 on buying the MSD

 

I just cleaned up the opti I had 236,000 miles on when we rebuilt my engine and ran the dyno up to about 6950-7000 with no observable ignition trouble. Cam peaked around 6840 and fell off very gently after.

 

what if i just buy the cap and rotor that MSD offers and put that on my stock opti? will that work also?

 

I will always strongly suggest DO NOT change just the cap and rotor. If it isn't broke don't fix it, if it is broke fix it all.

 

Well I'm obviously in the "if it ain't broke" camp. I also would not replace the cap or rotor without a good reason. I've seen at least some early MSD product that had poor tolerances.

 

yeah i guess you guys are right, its just a little dirty and oily (from power steering leak) so i'll just clean it up. I'll get some MSD wires and coil to spark up the other ignition stuff

 

I spin mine to 6700 (red line).

 

thanks 30696bird, i guess ill just keep my stock opti when i swap stuff over to my new motor. Parts are expensive so i can wait for a while