I have a 1994 z28. Every once and a while it will feel like it redlines at about 4500 rpm when i believe it redlines at 5600?? It does not do it every time but it does not sound good when it does it. It does not happen in any perticular gear. just at high rpm. Would appreciate any thoughts on this.
thanks -andy

 

ever replace your opti spark?

 

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no, i have not replaced the opti spark