Three possibilities, 250 c.i. with a 1 bar carb, TDC 250 c.i. with a 4 bar carb, 5 degrees advanced 350 and 400 c.i. with 2 bar or 4 bar carb, 9 degrees advanced
The firing order for a 1968 Pontiac LeMans with a V8 engine is 1-8-4-3-6-5-7-2. This sequence ensures that the engine runs smoothly and efficiently. It's important to follow this order when setting up ignition timing or replacing spark plugs.
On the firewall to the left of the wiper motor
On a 1968 Pontiac LeMans, the ballast resistor is typically located on the engine compartment's firewall, near the ignition coil. It can also be found mounted to the inner fender or on the side of the engine bay, depending on the specific configuration of the vehicle. Its purpose is to reduce the voltage supplied to the ignition coil during normal operation, ensuring proper engine performance.
Closed end of the filter goes into the carb first and the spring goes into the open end.
on my 1968 lemans I removed the grease cap then removed cotter pin and nut from axle and it will come off both wheel & tire of course your brake shoes cannot be to tight on drum
6 degrees advanced, or BTDC.
Factory stock ignition timing for the Corvette 327 ci 350 HP is 4 degrees BTDC.
4 degrees before top dead center.
4, to 8 degrees.
The 1968 Pontiac LeMans typically came with a column-mounted shifter for automatic transmissions, while manual transmission models featured a floor-mounted shifter. The specific type of shifter may vary depending on the transmission option chosen, such as a 3-speed Turbo Hydra-Matic for automatics or a 3-speed manual for standard configurations. Some models may also have optional sport shifters or console-mounted shifters.
What is the bolt pattern on a 1968 Pontiac Catalina
Timing Chain.