My 318 went 11.70s in street/strip Duster, i drove it to the track, 9.4 comp 10 inch conv Edelbrock heads no work done to them, if i work on the car more, i could have gone 11.50s, the same car with a iron headed 360, after i did work on the car, went 10.60s, i think with some compression and a good cam and gear. A 318 would be able to run 10s no problem.
