Re: What makes a engine efficient???
Maybe the new combo puts your engine in the peak efficiency zone when cruising around the city while the old combo just wasn't quite there at peak efficiency?
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Christian Carpenter
1963 C10 - Frankentruck 283, 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit
1981 C10 - Penny 305, th350
1995 Dodge Dakota Sport
"I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson
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