318 cam

273 said

Stock long block low cr 318 4bbl headers and comp cams xe262h be the biggest I'd go.

https://www.motortrend.com/how-to/mopp-0312-318-long-block-bolt-ons/

HORSEPOWER SUPERFLOW 901 DYNO-TESTED AT WESTECH
RPM	BASE	MOD 1	MOD 2
2,000	112
2,500	137
3,000	164	193	192
3,500	182	224	227
4,000	189	248	252
4,500	186	265	274
5,000	179	271	282
5,500		262	270

TORQUE SUPERFLOW 901 DYNO-TESTED AT WESTECH
RPM	BASE	MOD 1	MOD 2
2,000	292
2,500	287
3,000	287	338	336
3,500	272	335	340
4,000	248	326	330
4500	218	309	319
5,000	188	285	296
5,500		250	258

Click to expand...

I used the roller version of that in a 360 mag with 11.1 compression measured.
It was an absolute torque monster in a 78 power wagon, pulling an open car trailer, the first time my cousin rode with me, I opened it up.
He said holy ****, this thing revs like a dirt stock car. Idle until the valves floated it just pulled.