Related tid bits from the past....
"... the major reason to remove the water crossover from the actual intake is to allow the intake portion to be correctly located over the head ports. Sometimes more attention is often paid to stopping coolant leaks than matching up the intake ports. If you install the intake incorrectly, all your port-matching can go out the window. If your manifold is even 1/16 inch off front to back, those sharp steps between the intake and the head will create eddys, causing your flow numbers to deteriorate."
Jim Hand
Further comments made.....
.. And with the crossover having to be drawn up against the timing cover, the ports will not match up.
So, cutting the crossover off allows the crossover to be drawn up and tightened. (No water leaks)
Then you can position the intake/ports where they need to be.
johnta1
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE
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