![]() ![]() Good NEWS ,YES the Elgin # E 1133 IS a copy of the duntov 30-30 cam with. I called competition products in Oshkosh wisconson, Or, buy the cheapest cam you can buy that is as close to the ISKY specs from competion products in Oshkosh Wis., I have installed the ISKY 270 Mega cam in mid 60's 327 corvettes, with iron manifolds, and stock exhaust, and the owners Love this cam.,It pulls HARD. You will install the cam advanced, to get more low end power. you do not have to run lobe center of 112 degrees or more,pick a cam with about 108 to 110 degrees LC. duration with iron manifolds, all you will do is suck the exhaust gasses back into the combution chamber durring valve overlap, this gives an EGR valve effect making your fresh intake charge diluted with exhaust gasses,killing low end power.īecause you will use a stick vs auto trans, you can get away with a little rougher idle. you want the same duration on both the intake and exhaust. ![]() There for AVOID dual pattern cams where the exhaust duration is longer/bigger than the intake duration. I have alot of experiance with running cast iron exhaust manifolds.a lot of the stuff you read and dyno specs are based on using tubular headers,when you use Iron manifolds this info is not valid. ![]()
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