Nice looking car. Like Charlie says: easy swap. That said, I tend to think like the others, but it's your car.

It closely resembles one that a schoolmate had when I was in high school, only his was white; 302 Jimmy, 3 carbs, cam, handbuilt headers, three speed, and it would pretty well thrash most of the V-8s on the road at the time; one in particular I remember quite well, because I thought the then new 348 Impala was the absolute best thing going, but that '52 flat ran away from it.