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Vacuum Advance in V8 Engines

The role of vacuum advance in improving part-throttle efficiency, drivability, and emissions in street V8 engines.

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Jan 25, 2026
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what are the functional differences between vintage Mopar 318, 340 and 360 engines

are closely related small‑block V8s that trade for different real‑world roles: the 318 as an economical, low‑output workhorse; the 340 as a short‑stroke, high‑revving performance engine with aggressiv...

Jan 24, 2026

in a vintage V8 engine, what is the purpose of vacuum advance on a distributor

on a distributor advances ignition timing in response to , which is a quick proxy for engine load, and thereby improves part‑throttle efficiency, drivability, and emissions on street V8s . Its effect ...