SPF uses real smith's gauges and actual Lucas switches in the dashboard. They are OK, period correct and all. But their reputation has been earned. The needle movement on their
oil pressure gauges is a little sticky sometimes. Their speedos are not all the same, same cable and gear, swap the speedo and your mph reading will change slightly sometimes. Their mech temp gauges are fine, until they accidently contact the starter solenoid and arc weld themselves into uselessness. There are beter gauges available, but there are also better motors than the 427SO available, and I still like those too, for a cobra.