I have a set on my 451. Couldn't be happier. They were great, right out of the box. My machinist said they looked better than plenty of Eddy's he's looked at. I changed the locks & retainers to Comp 10*, but I'm running a sizable solid cam. for a street hydraulic, the stock 7's are fine.

The reason they're cheaper is because they're cast in China. They are assembled here in the states. If that bothers you, then buy edelbrocks, which are made 100% in the USA. Personally, I wish the stealths could say made in USA, but I would have bought them either way, because I like the stock look they offer. They've been out for a few years, so there are probobly thousands of sets now in use with plenty of happy customers.

Bottom line: for the money, you CANT beat em.