Hey guys ! I have a 1991 Firebird w/ the 3.1 six cylinder engine.
When I bought it the hood had been replaced after a minor accident. Thus no sticker with the specs. It is now set @ 4 degrees BTDC and seems to run well, after a good major tune up.
However, the Chilton manual I have lists my motor and all the previous 3.1 and 2.8's @ 10 degrees BTDC. Also am I wasting my money by using premium gas. Thanks for any replies.
When I bought it the hood had been replaced after a minor accident. Thus no sticker with the specs. It is now set @ 4 degrees BTDC and seems to run well, after a good major tune up.
However, the Chilton manual I have lists my motor and all the previous 3.1 and 2.8's @ 10 degrees BTDC. Also am I wasting my money by using premium gas. Thanks for any replies.
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