It does have the pink/red gaskets so that's on the list. They were replaced about 100 passes ago when the heads were off. Its MSD crank trigger, MSD 7AL 2 box, MSD 8201 pro power coil, Taylor 8mm wires NGK 8 plugs. Shift fall back with converter 1 was around 900, with converter 2 800. Converter 2 is a known piece from ATI built for a 936 hp 572, had 40 passes since new when installed. The incrementals 60/330 330/660 are nearly dead on going back to 2018. Both are 9.5 cores which outwardly appear to be the same core style. Stator shaft support was replaced about 40 passes ago. Its tight and splines are nice. Always careful with the idle screws as you say this is a known problem. My friend has a similar engine that has been dynoed at Best. Same intake with a a pair of Pro Systems 950's. Going to just switch the entire upper half with his upper and carbs.
Doug