1990 chevy s10 firing order?

Answer 1

My 4.3 TBI S10 is 1-2-5-6-3-4. The number 1 cylinder is the passenger front cylinder. The number 6 cylinder is the driver rear cylinder. The number 3 cylinder is the middle cylinder on the passenger side. The distributor number one position is at 3 o'clock if looking down at the distributor from the front of the truck. Other people have posted 1-2-3-4-5-6 as the firing order with the number one cylinder at 7 o'clock in the distributor. I don't know where they got this. Mine setup appears stock and works so I am not tampering with it.