deciding on a intake for a sbm weiand stealth or air gap

Alright guys here's my setup! I had a cam thread to which I did explain my setup! Rusty rat rod! 360 stock cast crank eagle rods bored 0.30 over kb flat tops 9:5:1 comp maybe higher 360 J heads torqer 2 intake 600 cfm Eder och being changed to a 670 street avenger it has he'd man headers with 1 5/8 primarys and a comp xe 256 cam with non adjustable rockers
Note I will be upgrading a few things down the road like the cam and valve train the car is a 67 dart with a built 727 and a 2500 stall car weighs 3000lbs