Check this web site for the victor reinz gaskets. I used them for my intake on my 514. No more leaks. Also, another good trick is to cut pieces of threaded rod and place them in the heads that have the holes that are straight up. Thread those in and set the manifold in place. Then you don't have to worry about being off to one side or the other. Then start putting in the other bolts. Once you have done that, remove the threaded rod and replace them with the regular bolts. Make sure you cut the threaded rod long enough so they stick out so you can remove them once the manifold is in place. I didn't use the end gaskets either as mentioned above.
Scott
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