1-8-4-3-6-5-7-2 and the distributor rotates counter clockwise.
the firing order is 18436572. The Distributor location of no 1 is usually on the front to the right of the Dist. hold down clip. But, that can be changed depending on where you locate the Dist. in the block.
1-8-4-3-6-5-7-2
255
try manciniracing.com or most parts places can order you the parts.
255bhp.
18436572
The firing order for the Pontiac 400 engine is that the small block powers the big block.
18436572 clock wise
the firing order for a Pontiac 400 v8 from 1967-77 is 1-8-4-3-6-5-7-2
255
1,3,7,2,6,5,4,8 Counter-clockwise.
265, 301, 307, 326, 350, 389, 400, 421, 428, 455 all have the same firing order 1,8,4,3,6,5,7,2 the 2.8 firing order is 1,2,3,4,5,6