Originally Posted by krautrock
i would get the promaxx 9440 heads from jegs. 84cc closed chambers.
get $100 off right now.

find pittsburghracers thread comparing the promaxx smal block heads to the edelbrocks...the promaxx are finished nicely.





If you lived closer I would throw one on my bench and get you some flow numbers and do some air speed checks for you for free as I would be curious too. I do before, during, and after flow testing on every head I port. Then I bolt the intake on and finish the job.


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