I’m sorry to say I would and do buy a Speedmaster head before I would an Edelbrock head. Number one, price. Number two, casting quality. Number three, guide fit. I’ll take a hair lose over a hair tight any day of the week. Number four, chamber around the intake valve. Number five, 10 degree retainers and keepers instead of 7 degree junk. There’s probably more but that’s a start. Ok I thought of another one. Number six. I will still take on a set of bare Speedmaster heads but I won’t ever take on another bare set of Edelbrock heads.
