How do you like your 340s ?

Mine was an all-original '69 engine. It had 360 heads on it though, heads didn't come with the engine. I could almost run it on 93 octane, but not really. It knocked and pinged like crazy. I dialed back the spark advance, but it didn't help that much. Why I had trouble, and it seems nobody else did, who knows? A wilder cam would have helped by lowering cylinder pressure.

Anyway, it ran great otherwise.

Now it has Eddy heads, a hydraulic roller, and some other goodies. It still runs the 3-5/16 stock crank, but it now makes 460 HP on pump gas. No ping. I have yet to drive it, but I already love it.

Sweet sweet music (well, if you have Quicktime installed): http://www.thesandmshop.com/media/Dirtbag340.mp4