My junk is not really all that radical, 512 cid, 255,258 @.050 cam when I had a single plane intake carbed, it had a pretty rough idle,low vacuum , not terrible to drive on the street but not really pleasant to drive in traffic, car has AC & OD auto trans, when I went to Hilborn 8 Stack EFI it will idle @ 650 rpm in gear now sounds like a stock 440 mag & drives like one until you hit it hard, it is a DREAM to drive on the street now, except for the hood clearance problems LOL, so far runs high 10's in street trim.

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