Cooler intake manifold

Anything you can do to cool the incoming air fuel charge will help power output. heated air fuel charge has no place whatsoever in any type of performance engine, even a mild one, IMO. I've always thought that was one thing the factory got DEAD WRONG. It was all in the name of faster warmups and that's IT. There are no other benefits. If you have a choke that depends on exhaust heat, change it to electric, manual or go EFI.