Its being tested in real life on my sons 360 Duster in the near future. I tube all the Edelbrock heads I port but I also smear a light coat of splash-zone over the tubing. He runs alcohol so this will be a good track tested test. I coated his heads.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time