Oil Cooler thermostat, oil injection sump, etc.

[mikeinatlanta]

Originally Posted by mikyFIA

A gas tank in the back and a metal line from that (sending unit) to the mechanical fuel pump on the block.

Depending on the proximity of your fuel line to the exhaust the vapor lock is possible, but unlikely. Unless you have a fuel pump that pumps sufficient volume, a return line may not really help. It looks like you have a fuel regulator in the pic with the carbs. If that is the case, does it have provision for a return? If so, the increased fuel flow from a return will all but eliminate the potential for vapor lock.

If my fuel line were close to the exhaust, I'd throw on an insulating sleeve before I ran a return. Exception would be a high volume mechanical designed to use a return.

[mikyFIA]

Originally Posted by mikeinatlanta

Depending on the proximity of your fuel line to the exhaust the vapor lock is possible, but unlikely. Unless you have a fuel pump that pumps sufficient volume, a return line may not really help. It looks like you have a fuel regulator in the pic with the carbs. If that is the case, does it have provision for a return? If so, the increased fuel flow from a return will all but eliminate the potential for vapor lock.

If my fuel line were close to the exhaust, I'd throw on an insulating sleeve before I ran a return. Exception would be a high volume mechanical designed to use a return.

Thanks I will check out the fuel line path. I have a pressure regulator on the inlet end of the fuel rail, the other end is just a plug, so return could be added, as the pressure meter is on the dashboard. I think I will drive it around for a while and see if there is an issue with vapor lock, in all the cars I have ever had (well except my brother's 1951 Ford flathead) I have never had a vapor lock issue.