I do not doubt that those might be better built and finished. But I think that both of those manifolds offer Boss 302 performance and the Holly sniper might be more for the supercharger setups since its all metal. The Cobra jet looks massive compared to the boss manifold and after about 30 hours of work it looks great!!While they won't take the oval twin throttle body, there's always the pricey Edelbrock:
Edelbrock Part # 7180 Victor II 5.0L intake manifold is for 2011-16 Ford Coyote 5.0L V8 engines and features long tapered, crossover style runners with a large plenum for outstanding performance. The cast aluminum construction makes it ideal for nitrous,www.edelbrock.com
And the more reasonably priced Holley Sniper with 90mm opening:
Holley Sniper EFI 833151 Sniper EFI Fabricated Race Series Intake Manifold - 2011-14 Ford 5.0L Coyote - SilverHolley Sniper EFI Fabricated Manifolds continues to push the aftermarket by introducing our latest Race Series line of intakes for GM LS 1/2/6 and Ford Coyote 5.0L engine platforms. Feedback from racers and install shops, related to our original line of EFI intakes launched in 2015, were...www.holley.com
When I asked Shaun whether all the bother with the CJ setup was worth it for an extra 15rwhp.... his reply was... Thats 15 hp that you don't have now..... If that extra 15hp gets me infront of the Porsche GT3s on the straights... Then it was worth it!!!
Well, if the ported heads, ported CJ setup with LM intake cams cams, new header collectors and 3 inch exhaust gives me 50rwhp more... will be a very happy camper!, if not... then have to think again....
Would love to have a Cortex SLA setup.... But would have to be working for that to happen!