I'm still breaking in my new 261 around town right now and am wondering what you guys recommend is a safe milage to wait before going on a 250 mile freeway round trip around 2500-3000 sustained rpm.
I got to climb about 3500 feet of mountains where I want to just stay around 2000 rpm.
Engine is close to stock with .060 bored cylinders, cast aluminum pistons, standard rings, 254 duration cam and milled 848 head.
