350 Timing

[1991 K2500]

I may sound like an idiot, but what are the steps to setting the timing for a 1991 GMC K2500 with a 350 TBI. I know the concept of a timing light but I would like to get all the steps, start to finish. Thanks

[2COR517]

Get yourself a Chilton or Haynes. It details the procedure, and you will be using it all the time with an older truck.

[77chevy]

I'd opt for the Chilton They are put together with the novice in mind. They have more info than a haynes.
Good Luck!

[Crawdaddy]

Ditto on the manual. The one trick that I can think of is that the 350TBI has electronicaly controlled timing advance. On the drivers side of the engine compartment should be a single-wire connector, tan wire I think, that has to be disconnected while timing it to make sure the computer isn't messing with the advance while you're trying to time it.