What should a big block Chevy idle at?
What should a big block Chevy idle at? If just a basic BBC, yes, 6 to 8 degrees at idle with vac. adv. unhooked and plugged should run decent all around. How much horsepower does a 1969 Chevy L78 396 have? Manati for this article had a traditional engine dyno test performed on a bone-stock 1969 L78 396 just like Chevrolet would have done back in the 1960s. The test results showed 425 gross horsepower at 5,800 rpm and 445 lb-ft of gross torque at 3,600 rpm. What was the model year of the Chevy 396? To add even more...