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[portfolio_slideshow id=37047] What is the 2016 Cadillac CTS-V? That’s the winning Jeopardy response to: A 640-horsepower sedan with 630 foot-pounds of torque, featuring the supercharged 6.2L LT4 engine currently powering the 2015 Chevy Corvette Z06. General Motors will unveil the most-powerful Cadillac in history at the Detroit Auto Show in January. The car has a 0-60

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re curing a potential fuel delivery problem. B.L. Vale, NC Q: I have a 350 Chevy (bored .030 inches over) with 10.4:1 forged pistons, 292-degree duration cam, and Corvette heads with 2.02-inch/1.60-inch valves. The engine also has an Edelbrock intake and