Speedmaster vs Edelbrock air gap intakes

30 HP difference on the aluminum headed 408 stroker is a good bit.

its a TON.. from one dual plane to another.
I know a guy at my home track with that stroker motor installed in his Duster. Gears, convertor, all set up to race and the car just barely squeaks in the 11’s at 110 or so MPH… been messing with it a couple years now. Cant get it to make anywhere near the power its rated at.