My Combo, Manifold Or Ported VAC Advance, We’ll See…

There have been several threads on vac. advance lately, and since I now have my old rusty truck running, I will be wanting to find out what my combo wants. I have a couple of things that may skew the results some, so at least to me, it will be interesting to see what it wants.


First, my combo:

1967 D100 short stepside, lightened a little.
340 based 414 stroker
ProComp heads with the pushrod holes plugged and redrilled for W2 rockers. 210 cc intake ports, 2.08/ 1.6 valves, 50 degree...

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Author: admin