He made timing changes it is at 40 degrees, and jetting are 83 front and 94 back , made 5 pulls on it he got a great name on builds all he ever done , my buddy got one like mind at 10.8 to 1 an he dynoed at wheels 620 hp , an I have Howard's cam 640 lift. Diffent guy done my buddy's build he got same lift cam but is a lunati