The issue of which cam has many answers, depending on trade-offs you are
willing to make and engine configuration. From the posting it is my guess
that you have a solid but more or less unmodified engine (stock head,
valves, carbs) and are looking for a bit more performance on the
street. Selecting any performance cam involves a compromise between poorer
performance at the low end (lumpy idle, loss of starting torque) to get a
boost at the high end. I have had very good experience with the cam sold
by Steve at Northwest Import Parts (a Delta regrind) on my stock
mill. This gives a nice kick at about 3500 rpm, with only a little lope at
idle (900-1000 rpm), and it's not too expensive. Note that in any case the
engine must otherwise be in tip top shape to take advantage of a hot cam.
A. B. Bonds
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