Run um. It'll be fine. Before I swapped the 360 in my 65, it had a good runnin 225 in it. When I first got it, it had a dead skip. I did a compression test and it had a dead cylinder. I took the valve cover off and it had a bent pushrod. I took it out, beat it back straight with a hammer on a vise put it back in, adjusted the valves and drove it for two years before I pulled it. It ran fine.