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Keith .. You sure the 590 small block cam isn't 265.
I know the 557 is like 257, doesn't seem right one step up from 557 to 590 would be 15 degrees 
I think the 620 for a smallblock might be 272
I have just read several links about the 590 being 265
But I have been wrong before... Lol
The 557 is 251, the 257 is incorrect
The 590 is 272, the 265 is incorrect
The 620 is way bigger yet, 280 sounds about right
Yes.. To clear up my screwup........ I got the 265 from both the Summit and Jegs online catalogs.
Wish they would fix/ update them so schmucks like me don't look so dumb
 
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17
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