Well, its time to replace plugs, wires, dist. cap and rotor in my '97 Wrangler 4.0. I read alot of posts saying that upgrading the coil wouldn't be of any benefit over stock but I've still got a couple of questions. If aftermarket coils are no better, how is Performance Distributors making the claim that spark gap can be increased to .065 with their 4.0 firepower kit? Second, has anyone tried opening up their gap using stock coil and wires or with better wires with any success? Thanks in advance for any advise.
- posted
20 years ago