Today, dollar for dollar, is the 318 faster than the 340 ???

In high school, a girl had a Ambassador or Matador.. can't remember now. Anyways, i came up behind her in my '72 Duster 318, and she slowed to about 45 mph. I kicked it in to pass her and she did the same. I did get around her, but not too fast.... LOL. I don't know what V8 she had.... That is when she learned 318- will - run .... LOL :D
We are now on a Rambler thread.... ;)
A 80's AMC AMX off the Hornet platform would work. Take the 258 crank and using 4.0 Jeep block and an over bore and have a 4.7 straight 6