How do I set the timing on a 350/290 HP engine without vacuum advance?

Question:
I have a 350/290HP engine in an 83' C10 Silverado, How many degrees BTDC should I set it without vacuum advance to end up with a total of 34 +/- 2 degrees BTDC with vacuum advance, i.e.(6, 8, 10, etc.)? Please help me!

Answers:

Whats the nicest car you`ve owned, tested or borrowed?

best way is to fully warm up the engine, then raise the rpm up to 3000 rpm, set total advance to 36*BTDC, leave vacuum hose on distributor if equppied and you should end up around 6*BTDC @ 650 rpm or so
But, most small blocks like a total advance of no more than 42*BTDC @ 3200 rpm on a normally aspirated engine and less when running superchargers or turbos etc etc

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Cargo capasity of a 2007 chevy corvette?

Your vehicle manual should tell you the base timing. But if you don't have one on hand do this...adjust the timng at 28 degrees. Next connect the vacuum advance and see if it adjusts six degrees if not annotate the difference. Lets say you adjust it at 28 degrees and once the connect the vacuum advance it adjust to 32...this means the difference is four degrees. This time adjust base timing (without vacuum) at 30 degree..catching on. Good luck.

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