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