got mine tuned the way i likes it on the 318

idles at 800-850 rpms,stomp it and it wont miss abeat all the way to 5000rpms

a stacked alum plate/gaskets and blocking the heat cross over took care of the perking bowls and hot starts

mines a manual choke and runs a little fat at idle,and will run out of cfms on a long hard blast

the eddie 750 was fat all over the place,could not find a sweet spot with it,but could tell it had more cfms on the top end a good bit over the 600 though..

but the 600 is so much more street friendly and has more throttle responce with it which make driving a little more plesurable for daily duty,IMHO

I want to see how the holley 650,manual 2ndary,spredbore,double pumper,works on the stock 440

never had one of these to play with before,so I will see if its just another holley gas hole