[Land-speed] Cold start valve question

[Rich Fox]

On the Plymouth I had an electric pump and two nozzles (one per port) that I
turned on before starting and ran for a few seconds after starting. Some cheap
pulse pump, not a big Holley or something.

From: Greg Meyers <advo at comcast.net>

. . . Anybody ever use a cold start valve to help light things off or to
temporarily richen the mix?  How well do these valves work with 8 psi?