At the car show I went to this weekend, there was one Chevy 1/2 ton truck that had an Olds 455 in it. He dynoed it at 600 lb-ft at only 1800 rpm!
That's with just a carb on top. I wouldn't get that much torque with even a roots supercharger on top of my 406.

Something to think about.


52 GMC 3/4 ton pickup
68 Big Block Vette
68 455 Firebird