I have been involved with a number of guys that got the Edlebrocks and not 1 of them worked right out of the box had to buy there tuneing kit to get them to run correctly I will never own one holley all the way for me.

70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4