Can you point me to a dyno test of a 440 with ootb TF240’s....... built around that mild of a combo...... tested on a dyno where the numbers of other builds could easily be compared?
I’ve tested an equally mild 505 with stage 1 RPM’s that made less hp/ci than that Grays 408.
Nothing “wrong” with the 505 build either...... that’s just what you get from that type of build.
It’s certainly possible that the TF SB head won’t be as much of a game changer as the 240 BB head was....... but I have no doubt it will prove itself to be a very good piece when used on a build that can take advantage of it.
My impression of the Grays build is....... they were expecting those heads to “transform” that mild street build into a fire breather.
They were looking for magic........ and didn’t get it.
Doesn’t mean the heads aren’t good.
