318 LA Rotor position and TDC questions

First thing is make sure either the little studs across the front and back are removed, or that the intake has the matching holes to accomodate them. Other than that, pre-check fit with dry gaskets on the sides. Maybe the heads, and or intake was milled EG if you have a used intake, and it was milled to fit heads, it might not fit yours well. Many of us do NOT use the cork end gaskets..........lay a thick bead of RTV across the front and rear, and immediately after you get the intake snugged down, run your finger/ towel etc across there to "form" it. Also look CAREFULLY under the edge of the intake across the front, as some Ed manifolds have a ?? gap ?? there that does not seal with RTV unless you nudge it into place