I had the 4 row Champion 1st, did not work very well, now have the ECP 2 row , works well, car has ac & Southeast Texas heat, 180ish all day long

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5