Originally Posted by Air Randy
The liquid heat riser is a must have with a header IMHO. It will make it warm up nicely when it's cold and keep it from vapor locking when it's hot.
Randy, I'm not running a liquid heat riser with my header. I've never had a problem with cold starts BUT I've had several instances of bad vapor lock when hot. How does the heat riser prevent it? Think I might try adding one if it will help with the vapor lock issue.