Is it normal for a 225 to...

make a noise like a playing car stuck in the spokes of a kid's bike? It does not make it at idle or when moving when the accelerator is not pressed (at idle, in gear) does it in forward and reverse. It kinda worries me because it wasn't there before, but I drove a '68 Charger that made the same noise so at the same time I'm not concerned about it too much. I replaced the condensor in the distributor and I cleaned the coil's exterior of caked on grease. The engine accessories were removed and the starter. After some paint it all went back EXACTLY like it came off and when I got it running again I drove it up and down the block and it made that clicking noise. :-k Strange.