I saw a Speedmaster Cross Ram manifold for GenI SBC for sale on Ebay for $300.

 

The only other player I've seen for intakes like these are efihardware.com. $1100.

 

The problem for those of us wanting Cross RAM EFI, speedmaster doesn't sell the complete kit. They do sell the stack kit as noted on another thread for ~$1300...

efihardware.com sells complete kits. $2900US without manifold and $4000 for a complete kit. Both need external fuel injection controller.

Any comments?

 

Looks to me, the EFIhardware manifold is port injection. The Speedmaster has no bosses or injector bungs so not designed as port EFI.

 

If you look at the efihardware website for BCOE Throttle Body's, the fuel injector port is built into each TB. Since the Speedmaster is just the manifold, you wouldn't see the injector boss's.