Less than 1k on the 396 in my blazer. Im parting the truck out, got myself a diesel blazer. Makes about 450 hp 450 tq. It was built for a 69 camaro, it has a car cam in it. Has awesome power from 2500 rpm and on. Red lines around 6k. You can see pics of it in my build thread.
http://coloradok5.com/forums/showthread.php?t=257208
http://coloradok5.com/forums/showthread.php?t=257208