Used a 1407 Eddy on my built 360 1970 Duster and it ran great. Ran it with a 1" 4 hole spacer on a Weiand dual plane high rise intake. Motor had a 280H CompCam and I bumped the intial timing up to 20 degrees. No hesitation at all at any throttle position. Gas mileage wasn't great but who cares.