440 build for a tow rig/"muscle" truck?

They sure look nice and the 12-pt cap bolts are a nice addition, I put them on my parts list.

@Bighead440 does the Action+ intake give better performance over the Performer on RBs in your experience? Performer is basically just an aluminum copy of the factory intake manifold anyway. And would an intake like that give noticeably more off-idle grunt than a high-rise dual plane like Performer RPM? I am using aluminum Stealth heads after all so I don't want to put on an intake that would restrict the flow into those better ports.

The RPM Edelbrock seems to be the champ, followed by the CH4B then the Weiand and last the Performer. I had the Performer on a heavy station wagon with a 440 before the RPM came out and never got to try the Weiand but the RPM made a huge difference when available. I just recently got a CH4B, but my experience with the DP4B (low deck 383/400) tells me it's bound to be a good choice. Even the Street Dominator Holley intake is a gooid choice, as RRR suggested, but it is a single plane.