My dad's 340 didn't pick up at all going from the OE #2100 iron intake to the LD340, it did pick up about .15 going to the Holley Strip Dominator, 4000 flash convertor though.
LD340.. overrated intake. People think it's the cat's ass cause the road race Challenger T/A & AAR Cuda used them.
I know EXACTLY what an LD340 is capable as I did flowbench testing on one, some porting and more testing, and then some more porting and more flowbench testing. It was all included in a post here 2-3 years ago. Gog-gone good intake with some work up to a certain point. There was still some on the table but I didn't want to do what was needed to grab it.
