340 exhaust manifold vs stock 318

Nice math,I mean it! 1:24=50%, 2x50% =100%, I like it.
If primaries make 250hp. then 2x250= 600 with the secondaries also open.... except on spreadbores then its triple, so 1000 hp . If 1200 is all it can do NA then 150shot should double something or other and the final output is high enough to launch me to the moon. Somebody please give me an A-plus
lol