I own both too. My L78 is in a 69 Chevelle with 4.10's. Cruises docile until you hit it and that camshaft, heads, and gearing make for a fun badass ride, pulls very hard and wheel hops bad during a burnout, but that is probably a different story. My oval port car is a 67 Vette 427/390 HP. So probably not a good comparison because of the 427, but I kid around that this is my station wagon engine in my Vette. It idles lazily at 650 rpm's, but has a nice lope. It pulls extremely hard down low and I am not sure how it pulls above five grand. It is the original engine in the car and don't want to run the risk of grenading the engine. I once owned a L35 69 Convertible automatic car. The torque in that car was really nice because it had a 3.07 and was a great driving car.
