I used a Hughes "steamroller" hydraulic roller in my last magnum build. I still have the cam on a shelf at home. It was a 10.5:1 360 with Hughes 2.02/1.60 EQ heads. The cam was a 218/
[email protected] .539/.549 lift with the factory magnum 1.6 rockers. Car weighs 3304 without me, 727, 3.55 gears, pump gas, etc. Carburetor was untuned straight out of the box and using a stock electronic distributor. Went 12.88 @104. That was my 3rd, final, and fastest pass. That basic combo was pretty fun on the street and in hindsight I should have left it alone.
I will be using a bigger Hughes cam with my edelbrock heads and 408. It's a 234/238 @.050 .571/.576 hydraulic roller.