318: .030-.050 over and Stroked to 340

I disagree, the extra bore of the 340 allows for better flow using a 2.02 or larger intake valve. You could notch the cylinders on the 318 but it still be 20 CI short. When 15 extra hp can knock off .01 a Q mile et that extra 20 CI could win a race you otherwise would lose

Sure a 318 can crank out the power but built the same the 340 will eek out ahead