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Briggs Flathead / Re: 18hp Oppy running Alky (engine, intake and ignition)
« on: November 05, 2017, 11:52:02 am »
Haven't been on heymow in a long time, that said. Ignition for this doesn't cost a grand. Your looking in the wrong place. Look thru my old build and pictures if there still on here. 2 wire mag pickup, Chrysler ignition module and a gm 3.8 2 post coil will fire anything you feed it. As far as methanol your wasting your time. The ports suck in this engine. I know I've built several. Don't kill it with a ton of compression. Moderate lift with alot of duration will get you what you want. They aren't a big rpm engine.