Victor, Super Victor...or just stick with my LD 340 maniflold

If it was mine and the LD340 was modded like you say and bolted on, that would be my decision maker. I'm just lazy like that. How "much gain" do you really expect?
800 HP AND 8500 RPM............Sorry been reading another thread all day long and my fingers just took off on me:D

Maybe a little bit more rpm.......maybe even better 60 foot?????????? i don't know, just think the intake is my weakest link right now.

Maybe i should just spend next year fine tuning my carb, now that my data logger is finally working correct.......(after 3 year of fighting with it.)

Maybe i should just put my smaller slicks back on and spend next year trying to make my Suspension work........

Maybe i should buy a new better cam now i have a hi stall converter...........Wait........wasn't somerone taking about Making a plan and sticking to it.:D

No the only aka porting that has been done to the LD340 is flange area was was opened up to a spread bore pattern and the center divider was cut and removed. Size and shape of runner have not been touch.
That's my though.......Do i do some port work on the LD? Or just jump back into a single plain manifold.