fluid type for A-518

for those interested all of my racing transmissions were stock off the shelf parts except for the 5.0 lever, extra springs in 3rd clutch drum and a reverse manual valvebody. a buddy ran a 65 ply. 440 low 10s hi 9s 1/4 mi. 3600 lbs. would carry front wheels a ft high. he swears 700 passes. pulled one time for cracked converter hub. i repaired the pump and disassembled and cleaned the trans and didnt replace any parts. as for type-f fluid it is questionable with a lock-up converter i dont know for sure. kenny did travel the southeast and kept a spare with him but never used it. it is still in the floor in his garage