All the HP 440 from 1967 to 1971 came with 750 CFM carbs, the lo po 440 came with smaller carbs work
I've played with a bunch of 440 motors with stock strokes and stock iron heads, all of them went faster and quicker at the race track with more cfm and fuel, one year(1991) I started my old bracket 440 powered Duster off with a 600 Holley D.P. on a old eddy TM7 intake, that combination ran11.70s in the 1/4 mile, I ended up switching to a Holley 750 and then a Holley 950 HP and finally swap the intake and carb to another racer for his Mopar M1 intake made for the Holley Dominator carb and his Holley Dominator 1050 CFM carb that ran 11.20 in my Duster and around 7 MPH faster than the 600 carb. ran work
I helped a friend do similar testing going from a 440 Torker intake with a Holley 750 D.P. to a cast iron six pack intake with stock 440 carbs and it picked up .15 ET and a little under 2.0 MPH in the 1/4 mile. His next swap was from the six pack set up to a tunnel ram with two 600 CFM vacuum Holley carbs. made his car go another .15 ET quicker an 1.6 MPH faster in the 1/4 mile work
My message is if you want power don't go small on the carb tsk
IHTHs

Last edited by Cab_Burge; 04/11/20 01:37 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)