i currently have a 76 sanger ski hydro . i built a 396 30 over good heads and solid cam . i have a early tunnel ram and now need carbs . i used holleys calculater on cfm and got 698 . so i figured 2 700cfm double pumps. problem i have is i see the predator carb takes up to 930 cfm . are those good ? easy to maintain and dial in ? or should i stick with the old holley and do you think a 700cfm is ok or should i use a 750? i see people put then sideways my dad always ran them inline. any difference or a new fad? please help carbs are alot of money to make a mistake thanks all