Mokadeth, a member over on the Luvtruck forum, has been coordinating a group buy to get some reissued for months.
It takes a minimum order of 25 to get them cast & he is paying up front to get the most popular version made.
It's a single plane, #6204. Alledged 25HP increase on a Luv.
It flows better than the stock manifold, has no EGR fitting, & takes a Weber carb with NO adapter!
There was a dual plane model that took a Weber(#6203). I have pix of it but it's not the one getting done. Available on ebay now & then.

The third(not sure of the model#) was set up to receive a small Holley 4bbl. Also only thru ebay or a junkyard if yer lucky.

Anyway, the 6204 is FINALLY getting done & should be available around 1NOV.
Cost will be approx $220USD with shipping to be determined (Hopefully <$40).
Info can be found here -
http://forums.luvtruck.com/viewtopic.ph ... highlight=