I run one on the 360 headed 318 in my 85 truck
yes the runner are reversed
they are the small port/runners..duel plane
works really well,just under a LD340 with the 340/360 size ports and runners
maybe a LD4B/LD340 hogged out to w2 port size
is old skool and not made any more but rare?? not IMHO
on my truck it was a night and day differance in HP/throttle response/rpms/torque even with a mix matched set of ports over the performer intake I had
LD340 is just under the #s of an airgap rpm intake and not as tall either
some people just say stupid stuff to get a reaction from people asking ?s about something