and yes he has a serdi.

i said he has the same tools as portflow

he has a flowmeter 100 or someshit
portflow has a 110 or something

but i know for a fact he has a serdi
i remember my dad tell me it was the best shit for valve grinding

he gave me a 3 angle valve job and he cut some material off from the intake side for like 100 bucks. and milled the head.