Mine is a 4 speed.
Update, I blocked off the leak on the intake and now I can track down the sound better. It does not sound like it is bottom end. It sounds like it is a combination of transmission noise, O Boy another problem and now I suspect cam. I have never had a cam round off during break in so I don't know want that sounds like but this sounds like a lighter knock than a rod. It idles perfect but the sound sounds like a jack hammer and can be heard best by probing on the side of the bell housing. This is a loud sound not a light sound you have to listen for! At first I thought it was just the tranny but I pushed in the clutch and half the noise went away. and the other half kept on knocking.
Is there a way to check the cam with out taking it out?
Also for the possibility that the intake and heads don't match, I got this engine complete and together, so I think unless someone mixed them up at the machine shop i think they match.
EB