Review on Spectre Performance 4668 Locking Header by Chris Floyd

So they work "great" when your manifolds are clean. You know. So you can use a 7/16 socket instead of a tool that won't even engage the latch of a ratchet or extension bar so you have to hold it at the drive end until you can get the screw in the hole, really no annoying problem. If you must use the supplied Allen wrench I tried stripping and ended up having to drill some through holes for the wire because the metal had shifted and jammed. Spend your money on quality screws. I ended up cutting 4 or 5 hex holes because the corners were slightly off center that I had to hit to get the screws in. spent most of his day drilling bolts and wrestling with stripped hex holes. Not to mention I ordered 2 sets of bolts for my 302 (16 holes, 8 extra) and received a pack of bolts and a sandwich bag with 4 bolts, tools and 4 wires instead of a second pack of 12. 2nd received full pack today, if they come loose they go in the trash.