My Car Starts To Miss After While If Im Doing 90mph And All Of A Sudden It Starts To Miss And Loose Power. I Have Changed Plugs And Leads But Still No Joy. Any Idea What It Could Be.??
Could Some One Help Please
Thanks

No help for you. Only those who know how to properly capitalize get help around here.

I noticed another poster that had the same typing style. I'm not as familiar with UK cars as others here. I'd say ignition coil is bad (most common) or catalytic converter is clogged.