could the intake be holding my low end down?

lots of variations in the various single planes
as YT says it's the combination
never got the single planes to work in motorhomes
musta been the wrong combination
I said it's the combo.
Single planes have their place, they do make the most power in the end aside from a tunnel ram... but everywhere under that..the dual plane packs a punch.
I took my wieand accelerator off and put a ld340 on nothing else changed and the car pulled much harder, ripped the tires loose way quicker...pulled 2.5 "more vacuum at idle. 284* .528 solid cam. 340