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Chevy 235 Timing Advance. What is … Start setting at 5 degrees advance (ball or circ

What is … Start setting at 5 degrees advance (ball or circle is about 1/2" to the left of the pointer) and drive around to get a feel. Ported vacuum measures 10in at idle and goes to 15in when the throttle is advanced. Then loosen the CLAMP, not the bolt for the octane selector, and set the distributor to TDC @ 400-450 RPM. In this way, … Where are the timing marks on a 1955 Chevy six cylinder 235 engine? Wish to time engine but need to know what the proper timing is and where timing marks are to shine timing light on. Ported vacuum measures 10in at idle and goes to 15in when the throttle i An overview of some of the disassembly I'm doing to diagnose my 1960 Chevy 235 inline 6. Setting the timing on a Chevy 235 involves aligning the pointer with specific marks on the flywheel. Distributor moves freely in the block. I got a PM the other day from one of the member who asked if I could explain the octane selector plate that is part of the vacuum advance assembly on a 235 chevy. Regards Chevy 216/235/261 Stovebolt Engine Manual! After the success of the Engine Manual (described below), Cartech Inc ®, asked me awhile back to create a comprehensive full restoration … Your vacuum advance is working like it should. Join me as I rebuild the distributor for the 1948 Stylemaster project.