4 degrees BTDC / Before top dead center.
4, to 6 degrees advanced, (BTDC) initial, or 30, to 32 degrees total.
I believe it is like all chevy's 18436572
4, to 6 degrees advanced, or BTDC.
4, to 6 degrees advanced, or BTDC.
stock timing on a 400 small block Chevy 2/4 bbl engine is 4 degrees btdc. depending on how the engine is built however, i.e. rebuilt to stock or built for performance, the timing may be up to 8 degrees plus or minus tdc or more depending on valve timing and cam timing.
.040 to .045 should work well.
That year vehicle has a carburetor and does not use a knock sensor.
30 degrees and 8 before tdc
Many ways. Pontiac 400 has a cast aluminum timing cover, that mounts the water pump directly on it, Chevy 400 has a stamped steel timing cover, water pump mounts to the block. Pontic 400 has fuel pump on the drivers side, Chevy is on passenger side. Pontiac has a separate valley cover below the intake manifold, Chevy intake IS the valley cover. Pontiac distributor does not go through the intake manifold, Chevy does. Pontiac has 10 head bolts per side, Chevy has 17. Pontiac has long exhaust ports that bend 90 degrees from the side of the cylinder head, Chevy exhaust ports end at the face of the cylinder head. Pontiac spark plugs are above the exhaust manifolds, Chevy is below. Pontiac 400 is physically larger than the small block Chevy 400 also.
Advertised horsepower is: 175 HP @ 3600 RPMs.
was just checking myself, but to give you an idea mine is 12 deg btdc.
Try it at 12 degrees BTDC. If there is no noticeable pinging, advance two degrees at a time until you notice pinging and then back off 2 degrees. With good fuel, you could get up to 16 degrees or so without problems.