[sphanna]

Ok, I guess we all do stupid. I surely did. I have a 6:1 head and everything else was stock. Wanted to see what my 1930 fordor would do with a new engine. 3.78 gearing. on a rural pavement, level for 6 miles I floored it and it peaked out at 73 mph on my gps. As soon as I hit 73, I immediately slacked off. Engine rpm was 3200 for no more than 5 seconds at this speed. I now have 16,000 miles on this engine trouble free but I would never do anything like that again. Later I installed a Michell 26% OD and at 2200 rpm I get 63 mph. On expressway I can cruse at 60-65 w/o abusing the engine but I don't. I have grown up a bit since then.