AFR Heads

That's nice and all. But it's really too bad we gotta buy borderline stock replacement parts and have them professionally hogged out. Look at all the sbc and SBF offerings. Easy to find options well north 300 cfm....that don't require weird offset rocker arms and drag race only solid roller cams.
TF made it so your average dude can make 500+ hp be nice someone step it up to 600 hp with good availability and price.