Summit Racing SUM-6900 Summit Racing™ Classic Camshafts | Summit Racing
OR
PLYMOUTH COMP Cams 20-210-2 COMP Cams High Energy Camshafts | Summit Racing
It's a 72 dart.
Both have low duration @050 which should be good for the truck and it’s 3.55’s on 28” tires. Be the truck a commuter to and fro for work and/or actual working truck that Carrie’s and hauls material. The brute low end is what is really needed in a truck (or car) that see’s traveling to and from work and/or is the work truck.
PHR mentioned the Isky camshaft which is also realllllly good for this application. The bigger Comp I listed has a listed 1,500 starting rpm range which is just off idle, & requires no converter upgrade.
Don’t use the 273 small valve heads.