440 engine mod help

[dazedduster]

I have a rebuilt stock 78 440 out of a ramcharger in my 73 duster. I am thinking about putting a performer RPM manifold and a comp Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 268/280, Lift .477/.480, Mopar, Big Block, Kit in it. Is anyone running a similar set up and how does it work or is this to much for this motor with the compression it has. I also have a holly 750 to put on it.

Additional info.
full manual 727 trans
8 3/4 373 Detroit no spin
SS springs
.920 torsion bars

 

[Abodybomber]

Should be a good runner. That's a good cam/intake choice.Was involved with a similar grind,on a 9:1 383. Nice combo.

 

[txstang84]

That's COMP's version of the 375hp 440 magnum cam isn't it? Ought to run pretty well I'd imagine

 

[Abodybomber]

Good eye,84. The quicker ramps ,help nicely with street ability. Have a soft spot ,for 383's.

 

[txstang84]

Many thanks-can't wait to work on that one in my storage unit--gonna be a little while yet

 

[Abodybomber]

383's can crank. Seen the Purple Shaft stuff, crank mid 11's in the mid 80's.

 

[RustyRatRod]

Detroit No Spin. Das wut I'm tawkin bowt.

 

[txstang84]

Probably isn't really needed in a Duster with 3.91s, but I bet a little bit of stall would make that thing expensive to keep tires on.

 

[Jim Lusk]

That's COMP's version of the 375hp 440 magnum cam isn't it? Ought to run pretty well I'd imagine

No, that's a bit bigger than the stock 375hp cam. I've got something similar (Mopar cam) in a similar 440, but it's nowhere near ready to go in the car so I cannot comment on how it runs. My pistons are about .180 in the hole...

 

[RCK850]

My combo was similar to yours only I had a MP .484 cam, a single plane M1 and stock unported 906 heads. It ran 12.3 @ 109 mph