Re: SpaceX is a go for April 30th: 1st commercial launch to space stat
I would have to review exactly what I said at the time you're referring to. I may have been wrong then if I claimed that Falcon Heavy is a Heavy launcher.
The closest SpaceX has come to interest in a SLS class launcher was a presentation they had showing what it might look like should NASA contract them to build one for the SLS program. Currently there is no evidence that SpaceX is working on such a vehicle nor any components that could be applied to one really. They have enough on their plate with developing reusable Falcon 9/H and manned Dragon anyway.
Baby, you and me were never meant to be, just maybe think of me once in a while...