Well lets face it the 340's attributes are that it revs to 6000 rpm. When does a stock 318 fall on its face around 4500? I had a 318 in my Dart with 3.91s (my car is a Swinger 340 the 318 is a nice direct swap while the 340 is on the engine stand) fun around town but screaming at 90 MPH . I remember the 318 ran well but the 340 is night and day even at idle and with throttle response. The 340 you just know its a runner at idle. 318s stock yes will sound good and do a 1 leg burnout but you'll lose your hard on for it if you go racing with it.
