Benefits of manifold v ported
That's good news.
Looks like a test case for why I said that manifold (unless a big duration cam) is how these motors were intended to run. Manifold vacuum leads to better throttle response and lower overall temps (especially siting in traffic) v ported. Ported was the engineers response to EPA regulations and not at all a performance enhancement.
I think of it as the timing is already there as you give it part throttle rather than that half second delay if running ported before the dizzy advances. (Obviously on hard/full throttle there's no difference between manifold and ported because vacuum drops, and just get the mechanical advance.). But most folks drive their cars in traffic and there manifold is typically better on a stock-ish setup. That's my experience.
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1974 Lemans Sportecoupe GT (daily driver)
.030 over 354, #47 heads (84cc), Lunati voodoo 700 camshaft (207/213 @ .050), logs, 2.5 duals, X-pipe and Dynomax super turbo mufflers, 3.08 rear
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