ditto, they suck with their crummy 23* valve angle, stud rockers, garbage rod ratios, thin casting warp prone heads that don't flow squat, twisting pos short rods, weak main caps, heavy boat anchor cyl heads [bb chevy heads weigh more than 426 hemi heads] .....they basically copy a stock mopar when going racing=changing to 18* heads, steel cranks, shaft mount rockers, long rods....
total garbage and thats all that needs to be said
more importantly I've just learned a lot of our members know more about chevys than mopars.......hmmmmmm....