If you don't change plug wires I would buy a spare set and carry them with you. Depending on the vintage many 454's are known for high exhaust temperatures. Even if you do change plug wires I would save a couple of the long ones (so you can use them on any cylinder) for spares. I'd suggest taking a close look at the exhaust manifold gaskets (and entire system) for leaks and take ant necessary action. I have even had to remove exhaust manifolds from my 454's and have them remachined flat to get a good seal.
I drove 454 powered dually pickup's for years but finally had to give them up due to gas prices.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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