Today, dollar for dollar, is the 318 faster than the 340 ???
I must have been in la la land, I/We didn't give small blocks a a 2nd look back in the late70's early 80's.
If it came with a small block it was replaced with a big block.
I have a 318 poly in a 64 D200 and a 360 in a 73 W200, That's enough small block for me. not impressed. lol