96 Chevy Blazer loses power and misses after running a while?

Jim

New member
About a year ago my blazer blew the gasket on the air intake manifold and I changed that. Since then I have been having loss of power and misses. I changed the distributor cap and rotor which did not help. I had it to a few mechanics who only came up with some misfires from reading the codes. I finally took it to a mechanic who told me he "guaranteed" that with the mileage and age it was the timing chain needed replaced so I did that. I still am having the same problem. Any ideas on where to go from here.
 
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