I ran an XE274 in a 0.030" 400, stock 670 heads, 3.55 gear, 2500 stall converter, 3 tube headers in a 3858# car that did 13.0 in the 1/4, still got the motor. I think it needed a little more converter to take advantage of the cam but was an excellent all around driver and felt great on the street.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule.
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