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#12
01-09-2020, 03:11 PM
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Manifold vacuum generally best for a driver
That's my experience. Ported is bs emissions creation of early 70s and will just increase your operating temps at the stoplight big time. Ported takes a good running engine and makes it run hotter and hurts throttle response.
Like Cliff said, once you get it tuned properly, manifold should be fine unless cam selection is way off (ie, too much duration for the compression ratio and combo of car and gearing)
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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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