Ok now I checked the set of Edelbrock heads I’m doing for myself and they aren’t like this but the spring pockets are huge. Like 1.790 huge. The chamber have a very rough sand casting finish as do the ports but I’m porting those so they will be cleaned up. I’m spoiled by the valve guide fit of the bare Speedmaster heads which except for one .003 oversized guide fit. These are tight and I mean tight. Ok moving on the chambers if you look in the pictures have to be enlarged, a lot. I’m probably going to sit down and figure out the extra time required to make these heads right and start charging more for Edelbrock heads.