Camshaft for 5.2 magnum

get the stock roller reground by bullet cams

Bullet Cams Master List

use the HR258/320 on the intake and the HR261/316 or HR265/320 on the exhaust with mag heads, hughes 1110 springs, 600cfm carb and headers, and it will pull really nice, as hard as a stock 360 with the same induction/exhaust and an comp XE262, but get 4mpg better (been there, done that)....the .2" lift duration of that HR258 is actually larger than the XE262, despite having 12 degrees less .050 duration.