That will always be a concern as long as you keep the intake "wet" on an inline engine. I designed and almost have ready to cast a front mount throttle body EFI intake for the slants. Got a lot of interest on the other forum, but i've also been casting a similar intake for the Chevy inlines also. I have several guys in Brazil making almost 900 HP with them. Turbocharged of course! But they work good.