What is the rpm sweet spot for highway driving

MOPEkidD-3 said

I think that last post by AJ is the winner of the thread...

BTW RustyRatRod you guys must have different highways than here we got 65 mph speed limit going through downtown areas and 75 everywhere else. Heck i once hung at 100 mph for like 5 minutes on an open stretch in the country between cities :D

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Me and sis drove my dads early SC400 from the OC to Austin, TX and didnt see under 90 from about Palm Springs, CA to the TX line. talk about a cannon ball run! Left here at 7:30 PM and made El Paso by sunrise. I dont think our mileage was that good but that car didnt seem to care what speed we drove it at. That quad cam V8 motor is balanced to sick specs. I think it was at about 3500 at 95