The Ranco valve I am talking about is like this

42128a47-533d-4292-8d9c-bd51a68600d2.jpg

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