I have the ECP in my 68 Charger 512 cid, COLD A/C , car runs 185ish all day long with the A/C on, down here in HOT Southeast Texas.

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