440 duster. Need engine build advice

With this model not very long,front end was good and rear was perfect,just a little boring and stroking,opened up the intake,already had great heads,rips outa the hole like a rocket and hooks and bangs thru the gears like a pro and after the ride and the smoke clears takes me a few minutes to see again,took some getting used to being strapped in but its a hell of a ride....had her about 13 yrs and not so much as a gasket leak...or a backfire from the carb...lmao.....boy I'm in for it now....