I've been running a Hughes HE3844BL in a street-strip 400/470 E-Body, 4 spd. for 15 years. Here's the link to the cam's profile (http://www.hughesengines.com/TechArticles/heseriescamprofilesbigblockhydraulic.php) if you like to compare with the Hughes cams you're considering. My motor has slightly more compression, E-heads, 1.6 rockers, Performer Plus intake, 1-7/8 headers with 3" exhaust, 4:10 or 3:55 gears, 3600 lbs. w/o driver, manual brakes. Low end torque is outstanding. I can lug the motor down and she pulls strong and easily to 6k.

At the time, Hughes spec out the 3844 and the HE4449BL since I wanted to go with a hyd. flat tappet. With the added cubes you have, I believe you will be more than happy with the 3236.