My 340 build

The thumpr goes in at 102 IIRC. That will defeat any reduction of dynamic. Isn't the thumpr more deigned to help low compression engines, same as winding a 284/484 way ahead of the XE268H? It does have more duration but it also 4* ahead. Maybe installing it at 107 might be OK.

If anything I think this has to go the other wider LSA and install closer to straight up. You want the intake closing late here.