Quote:
Originally Posted by Charles Stewart
From the Edelbrock technical instructions:
Exhaust flange has been extended out .125” in order to provide dry exhaust bolt/stud holes.
From NHRA classification, they carry a penalty (weight/ratio HP) for using those heads.
https://edelbrock-instructions-v1.s3...rock/60917.pdf |
You can bet that anyone running those heads in SS has that extra flange milled off the exhaust ports