340 vs 360 confirmation

340 vs 360 confirmation

https://www.motortrend.com/how-to/mopp-0307-installing-exhaust-headers-into-300hp-crate-engine/

Dyno shootout of manifolds and headers on a 300 hp 5.9l

Horsepower
RPM	318	360	340	SHT	1 58	tti	1 34
2500	186	185	187	189	187	189	187
3000	223	223	225	226	228	228	226
3500	269	271	272	276	280	281	279
4000	299	301	306	307	314	318	312
4500	311	313	315	321	319	326	321
4600	211	314	315	320	317	327	319
5000	303	304	308	315	312	316	311
5400	281	291	289	295	282	296	289