What would you do? Slant performance
Years ago a friend built a 225 for his 66 Dart, .030 over cast rebuilder pistons, cut the head .060, bowl work stock valves. Clifford headers, 4 bbl intake, 390 Holley, the smallest of the MP cams offered at the time, 4 spd OD, 3.23 gears, 215/75x14 tires. If you stood in front of it while it was idling, it still sounded like Grandma's car, the burble from the turbo mufflers in the rear gave a different story.
This car was a blast to drive; I live in NY state not too far from Watkins Glenn International Raceway, to get there the road is 2 lane, up, down, left, right not a lot of passing zones. If you wanted to pass; in 3 gear direct at 55 mph; just pull out and drive around the car no fuss, no muss, no bother, the engine was in bottom the sweet spot of the torque curve and it pulled hard, to do that in OD, you had to be going about 70-75mph.
/6's are very receptive to bolt ons, just don't get carried away and succumb to "More's Law".
Build it, have fun.