You might start searching for a V8 "dropped link" center steering link, you know what mounts you need and even the /6 insulators (like the one in the pic)will work w the V8 mounts. If iron manifolds either a set of 64-66 273 logs (which are very restrictive) or a set of pricey 340 HP ex manifolds will work w manual steering but the steering coupler housing may need to be shortened to clear the inside bend on the DR manifold. What carb & what throttle linkage do you have planned? EDIT this will be an A body 64-66 273 V8 "dropped" center link