Charlie, I agree with Tubman on the 8CM cam being very nice in a semi-stock engine. I am running one in a 260" Merc with good quench, a 2GC carb and Chev distributor and it performs excellently. Still a smooth idle-maybe just a tiny bit less smooth than the stock '41 Merc cam-but pulls hard from idle to 4000 rpm. From 1500-3000 it's a beast. VERY good warm up manners.
When I built the engine I checked the 8CM against an EAB cam and there is almost no difference despite what the published sources say. In fact, I would bet the difference between the 8CM and the EAB would be unnoticeable in operation...they are that close.
After using the 8CM, I would recommend it as well as the EAB/EAC.
I do like a powerful engine, and tend to use them briskly...
Terry
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"It don't take but country smarts to solve the problem" (Smokey Yunick)
'41 Merc Town Sedan / 260" 8CM engine
'66 Fairlane four door / "warmed up"
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