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SU carbs 120-130 1967

posted by  Volvo From Heck on  Thu Jan 5 11:00 CST 2017
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last visit: Mon Oct 13 20:56 CST 2014
[RELATED]

patrick wrote--"but I also see no reason to use premium, regular is fine in a well tuned engine."
I wouldn't necessarily count on that. A '67 or '68 B18 will have a compression ratio of 10:1 and premium was what they ran on "back in the day". With the alcohol diluted gas most of us have he might be able to use a mid-grade for easy cruising driving but I think regular would be pushing the envelope. These motors had run-on and spark knock problems to begin with.
Regarding Phil S's note about filter housings--'69 and '70 cars had Strombergs -- '71 and '72 had SU's. Individual filters as on the '67 and '68 look cool but the filter box I have on my '69 144 (w/SU's) makes filter changing a cinch and nets you an automatic "cold air intake" bonus that so many lust after. -- Dave






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