SB Air Gap mods
FWIW../
LD-340 did not come with a milled center divider.
But I did the mod and liked it. It’s a mod designed for a big cam and to “Legally Cheat” when the rules said “You must run a dual plane intake.”
“A big cam” back in the day was .600 lift and greater which always came with big duration @050 numbers.
AKA - A RACE CAM.