Very impressed with gas mileage

They had similar trials here & the Slant won from memory. Not hard to see why..... The long runners on the Slant [a] improved low end tq & evened up the runner length. The two other contenders were the local Holden & Ferd inline sixes. The Ferd in particular was about as inefficient for power & economy as you can get......The intake manifold resembled a 2 .5 ft length of water pipe with runners running off at 90*.