its a 93, i ended up finding some diagrams of the vacuum lines so im in good shape there...i couple of the hard plastic lines i have to make because he gave them to me in pieces....now im have to figure out how im going to do the timing on this beast lol i dont understand why they made this engine like this....can you tell me the benefits of having 4 camshafts? lol like what are some pros and cons of this over the normal 3400