340 cam replacement

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Wow! All I was asking if anyone had opinions on a similar size cam....the wiped lobe was just an assumption from past experiences...Anyhow, I went with a comp magnum series .480/231°. Got all buttoned up and sounds the same. After a day of trying not to think about it, I dove back in and I found that a bunch of the pushrods are rubbing the tubes in the head...
OK, why is that? 1.6 rockers? Larger diameter pushrods? Bent pushrods? The old heads were T/A's and they re-used the offset rockers?
Oh, they're just havin' a little fun.......& AJ kept it all under 15 paragraphs......:)......
 
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