Honestly...how good was the 318...mpg / durability / hp

way back, had a 318 2bbl '70 Barracuda. 114k miles when I got it. 17 degrees F , fired off with about 3 seconds of cranking. 95 deg. F, same thing. Hot start- no problem. Had it in shop class. Idle in 90 deg+ weather for 30 minutes or more. Never got to the 50% mark on the coolant gauge.
Never failed to start.
Never let me down. One time it did quit running because when I replaced the points I got the pigtail shorted against the dist. body. Took about 5 minutes to correct.
Had headers. Could count on 19 mpg highway. 3:23 gears. A904. Lots of torque. From a stop light to 55 mph was fun.
225k miles when I parked it. Running great.