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GarretT=> I also confirmed that the vacuum advance => is working using a strobe timing light and revving the => engine. You might want to just check maximum advance just to verify, but it seems pretty unlikely that you'd have problems with overheat due to too much advance with a vac-only distributor. => Can anyone confirm whether the 7.5 degress BTDC setting => is correct for that distributor? You're probably correct. According to my references, the engine number matters rather than the distributor. Automatic and a few middle-period manual-trans T engines (T 0 690 000 - T 0 691 601) were timed at 0 degrees (why?), vac hose on; all the rest with manual trans, early and late, should be timed at 7.5 (plus correction for your altitude, if necessary), vac hose off. If you have something other than a T engine, let us know. Steven Ayres, Prescott AZ '66 KG1600 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org