This comes up about once a week and I'm kinda tired of answering the same damn question... If you're wondering if this is a good manifold: http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=33742 The general concensus is that it is not a good manifold. Thin walls, chincy welds. However, some say it holds up if you properly brace it. If you don't know what I mean by bracing, then you probably should buy a nice cast manifold made by HKS, Greddy, or Drag.