I have to say even when it was burning
oil it ran great,i have a msd dizzy with 6al a super victor manifold and a pro systems carb, they used a holley hp 950 but pro systems told me its more like 830 cfm, the car runs great , no miss and just a little squeeze of the throttle and away it goes, i'm loving the way this thing goes, ill just mention that ford racing recomended a 850cfm carb when i rang there tech line, sorry to here your woes mate.