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@Winterpeg

There's definitely a point of diminishing returns that you could consider. If yours is high in mileage, it could be questionable, when and how long a headgasket would last. There's plenty of other ways to free up horsepower that may help with long distance towing and overall longevity before messing with the engine. It might even cost as much! Maybe consider reducing unsprung weight would be the most obvious but expensive thru forged wheels, C-rated tires, lightweight driveshaft (chromoly? And if it was a street driven vehicle, aluminum might do). Unless your heart is set on boosting, it's quite a commitment and is more maintenance on top of your current schedule. You got to pay to play.
 
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