there is a high quality stainless cast manifold coming to market but no dates yet, this is in my opinion going to be better than the six boost manifold or any tubular manifold out available. This is nowhere near budget like the hd automotive j pipe style or wits style manifold and it is overkill...
I got it before I knew about the RD otherwise I would have gone RD, the fit and finish sucks on the griffin but has been working ok right now, I got the griffin through jegs for 900.
Thanks to those who have commented with their temps. i'm just trying to get a bearing on the efficiency of the cooling system in my truck and it seems like it's doing well however don't have any summer heat data yet since my truck just got running in october/nov 2022. ambient temperature ranges...
if you are not using a boost controller the top vents you are pointing at vent to the atmosphere, you can plug the one on the left and put a barbed fitting with a small length of vacuum line vented to atmosphere or just open as it sits, but i like the idea of a length of line to allow debris...