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  • sporter28
  • sporter28 | Niceville,FL

 - 18737047

1967 Pontiac Firebird

My block has a real problem with the rear main seal groove depth. You can see the difference between the seal gaps in these two photos. One side is clearly... Show more

 - 18737202

1967 Pontiac Firebird

My block has a real problem with the rear main seal groove depth. You can see the difference between the seal gaps in these two photos. One side is clearly... Show more

 - 18736926

1967 Pontiac Firebird

The wire indicates the shape of my short turn before porting. Heads are 1975 5C. After porting. The port now follows the quadrant of the shaping valve. Th... Show more

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1967 Pontiac Firebird

Updated 9/17/2017 8:17:00 AM