A frustration. Might be that the position and cooling air way might be unsuitable for a larger engine. It is possible to get digital temperature gauges, I assume they are thermistors. Bonding that onto the cylinder head, or such, will allow you to monitor the temperature. It is interesting to note that the engine often gets hottest after a step climb, going down hill the other side. With no real throttle applied, it is thus weak on lubricant, and fuel to heat up to help it cool down to normal. A sort of catch 22. Why 'Schmitters flick the choke on descents.
Also with a tuned unit there is a bit of guess work before prime settings are found for timing, mixture etc. Knowing the temperature the engine is running at, is a very useful aid to getting it bung on. Its a bit expensive to have seizures to tell you there is a problem.Since the vehicle is pimped an extra gadget is possibly a bonus. More useful than machine guns.
The Green Hornet was Clouseau's 2CV, if memory banks are working.