After rereading the OP posts,Family cruiser, run mid 11's and the wife drive it are the goals. I think the cam choice and compression ratio is key. The present combo may not like to run at 60mph in overdrive..less duration and higher compression in the 10.75 to 11 range would help. I personally would send the cam back, and find out your compression ratio and if need be shave the heads to achieve a higher ratio. My engine in my signature drives like a pussy cat and a similar build would be perfect. You would also get 20mpg plus.
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
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