Weight reduction is done ounces at a time. The stock Mazda coil assemblies weigh almost 10 pounds so they were replaced with these more modern parts. Chevy fans will recognize these from the LS series of V8s. The home made coil mounts are made from aluminum sheet, aluminum tubing and a couple of pieces of all-thread.
The stock intake manifold was chopped up and modified for weight reduction (it was crazy heavy) and higher power. A cold air intake will be added later. When it was in an airplane that scoop on top of the throttle body was inside a ram air intake on top of the cowl, ala P-40 Warhawk.
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