I had a 64 Barracuda with a 273 Commando 4/spd. It had an Edelbrock hi-rise when I got it in 1970 and ran like a raped ape.
Cyclone fenderwell headers, Holley 780 dual feed, Ford 9" rear with 3:90's, Mallory dual point distributor, weld on traction bars,
Sun tach with sending unit. It looked tough, sounded tough and was only beaten 3 times in 3 years and I ran against a lot of big blocks too.
I traded it in for a 73 ElCamino in 1973 in Biloxi, MS minus all the goodies except for the bars and headers. Wish I could find it again.