[400TT]

We provide driver and passenger footwell vents as a standard on PACE 427. We force feed the air from the radiator opening as per the original cars. We get plenty of air even at slow speed using this method.

From memory you are running yours off the brake ducts. We have never had much success doing that and use the brake ducts for what they are intended, force fresh air onto the brakes.

It won't matter where you position the air blowing into the footwell, it is all about circulating the air through the entire cockpit. Keep your hose bends to a minimum, use as large a hose diameter as possible, 2" at a minimum, preferably 3". And insulate the hose against the heat e.g. rising heat from exhaust etc. Also make sure you have some way to control the air flow, especially useful to be able to cut off airflow during winter.