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« on: June 01, 2007, 08:38:53 PM »
You can check the timing chain by turning the crank back and forth and watch the dist. rotor also listen for chain slapping the cover that would be really loose but it happens. just because it is new doesn't mean the chain or timing gear bolts or crank key doesn't have a problem. It sounds like the cam timing jumped a tooth or two if you rotate the dist. around and make it run better and the headers get red idling it's jumped I had a friend's 302 do that it ran after moving the distributor, but not good and he couldn't figure out why the headers got red. It would rev up and sounded a little flat but ran. It had very little time on a double roller chain and it stretched or wore out really fast. maybe it wasn't preoiled? I always put mine in a can full of engine oil and heat it to preoil. I also would drain the oil and check for debris maybe cut the filter open. That engine is very costly I wouldn't take any chances.
Good Luck