Quote:

I agree, there is a place for the SP2P and Streetmaster intakes for a 440, It's on the shelf in someone else's garage.
If a person was serious about lowend torque in a 440, the Factory Truck 413 industrial heads and intake would be a better choice.
The current Performer intake is on par with a stock 440 intake, the CH4B is superior to the stock intake even though it was designed 40 years ago.

Sheldon




BAD BOY ... you changed your post

And what is your SPECIFIC experience with the industrial heads and intake ?

In my experienceS .. the intake is hardly worth the cast-iron scrap value. The heads ... what work have you done on them ?