I have a 318 from a 71 charger,originally 230 hpw/2barrel carb. I had it bored 30 over and ballanced . I used later model heads with 1.88 intake and 1.75 exhaust valves w/triple angle seats. It has a performance cam,dual plane edelbrock intake and 650 edelbrock carb. It is in a 39 Dodge D-11 weighing 3045 lbs. with 904 trans and 2:94 positrac 83/4 rear. With the weight and rear end it has excellent low end response as well as other ranges
for a small block.