hey guys iv got this old truck from the 80's always been a good runner. lately its been losing power and im not entirerly sure why. idels good but under load its gutless. I did a commpression test this morning and iv 100/75/75/175 lbs across the cylinders.. cant find any specs on it without paying an arm and a leg for a ebay manual. was hoping some one might be abel to help me out. I need specs on cylinder compression and valve gap distance. any info would be greatly appreciated.
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