I like the way you built your custom here. You mentioned the rear roll pan, but I think it looks fine. Sanding the large expanse of the body sides must have been fun. The paint finish is also smooth and looks great. As an aside on the engine. Your engine matches the appearance of the one year only 350 cu in 305 hp 2 four barrel engine. In '59 they increased the bore and became the 361 cu in with the same horsepower rating and a single 4 barrel. This engine was also offered in two versions for '60 with the option of duel four barrels and 310 hp. This block also had another bore increase too 383 cu in. The standard 383 with a single 4 barrel was rated at 325 hp with a 2 four barrel option both rated at 330 hp. The top 2x4 option had a torque rating of 469 lbs @2800 rpm and was called the Ram. The normal 2x4 had a torque rating of 425 lbs @ 3600 rpm. With a difference of 44 ft lbs and at a 800 lower rpm you have to wonder what all they did with the Cam and Heads. This information is from one of my old Motor's Auto Repair manuals copyrighted 1962. More information than you might want, but you got the engine correct on this.