how can i get more perf. out of 170 straight 6
#1
how can i get more perf. out of 170 straight 6
i am working on 1970 bronco with a straight 6 in it. the motor has always been weak and we are trying to get more hp out of it. thought about milling the head for more compression or a camshaft with more lift and duration. any help would be appreciated. thanks
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