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4L V8 1975 - 1978 GMC P35 Value Van 454/7
Replacement Hooker mufflers available in straight-through or reverse-flow versions
Rebuilds your factory pump
this system includes all necessary parts and hardware for an easy installation you can do at home
HP Copper Spark Plug - Shorty - 8199 cat-back-exhaust-system 4L V8 1975 - 1978Overview: ACCEL's patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3 16 in to 3 8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain
