I ran my 400 last weekend on a stand to break it in. It is on a "Goodwrench" stand, pretty sturdy but nothing real serious. I made a radiator stand out of 2x4's. I used a switch for coil power, and a switch for crank power, and a jumper cable to the starter. I also used an oil and temp guage. Don't be fooled, a lot can go wrong, I have heard of problems with the engine causing vibration. I was pretty confident in the build as I did it myself, but used caution. keep a fire bottle ready, and route the wires carefully. I saved a lot of trouble by running it on the stand. I had to run minus the inner valvesprings per the cam break-in directions, and it was a snap to do on the stand. I also was worried about destroying the ceramic coating on the new headers with the 2000rpm for 30 minutes cam break-in. I used the old manifolds and a partial pipe for the first 30 minutes, then switched to the headers just to hear it idle. Do not rev it whatever you do.
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67 Firebird 400 Convertible (sold)
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