My attempt at speedmaster heads and moving the pushrod.

pittsburghracer said
I’m hoping I can locate seats sized like Edelbrock heads so I can knock out the TrickFlow seats and fix their heads. Honestly I would have never bought them if I knew I had to do this much work to get them where I can get a Speedmaster head.

Don’t you have a lathe John? I thought you did. If you do you can buy some nice ductile iron stock and make your own seats.

I made dozens and dozens of them when I needed an oversize I couldn’t buy.