Dual quad Edelbrock tuning...

It's 1 to 1 or as you put it Direct now but I've ran it Progressive... The progressive makes it a little bit more easy to manage with the clutch as far as Street manners go but I still prefer one to one...
ok, I think for the street and gas mileage progressive may be more optional. Don't need to be working two accelerator pumps all the time. Direct is more All out race.