440 Heads - Angled Spark Plugs?

There are several Aftermarket Heads with angled plugs. I had Trickflow 240s, they are angled, and i think the Speedmaster Heads also, but not sure
Hmm did they stop making them maybe? Was thinking of going with Trickflow either way, but all their heads on summit and on their website are straight plug. Maybe I'll shoot them an email and see what they say