I need some help with a 1931 ford Vicky. He has 350/330 horsepower crade engine with Comp 268 extreme. I'm running a Walker Z series with air,flowcooler water pump. Higt flow 180 thermostat. Spal fan that pulls 2360cfm, demon 650 carb. My problem is at idle I have my vacuum hook to manfold side. I know I need more air flow but have no room for larger fan or shrould. What I was thinking of trying is 2 8in spal fan as pushers and ideas. Radiator core in 22 by 18 and 16in spal fan is a puller at the very top of core. Thanks, Leon