I run a rover v8 with a weber500 carb and an RPI front end kit http://www.v8dualfuel.com/lpg_kits/mgbgtv8.html
This has been my first experience with lpg.
When i was purchasing the kit i was unaware how much the ring would restrict the airflow and cut the power, now i want it back.
Would something like an Impco 300a solve my problem?
Has anyone got any other suggestions? How about 2 rings connected to the same vaporiser?
I'm told multipoint standalone systems (described below) are non-existent now a days, which is a shame as it sounds like exactly what i need.........
Anyways, let me know ur thoughts.....Multipoint systems that use individual injectors
Suitable for most fuel injected vehicles produced up to around year 2000 and a smaller proportion of more recent vehicles. Most of these systems can also be fitted to carburettor vehicles if a further inexpensive part (Lambda probe) is fitted in the exhaust. The parts on these systems are very similar to the latest fully sequential systems. They use nearly all the same parts, except the ECU works very differently. Where they differ from the latest sequential type is that, as with all the systems described above, they don’t use any actual inputs from the petrol injection systems so the petrol fuel systems can still become out of tune. They work in the same way as the multipoint non sequential systems but may work non-sequentially or sequentially. The advantages are the same as for the multipoint non sequential systems above, and they improve on these systems because the amount of fuel injected can be adjusted immediately - the amount of fuel injected is proportional to the amount of time the LPG injector is held open, which can be very different for each individual revolution of the engine. This means that the air/fuel mixture can be controlled very precisely. They can sometimes be set to work open or closed loop. If you had a carburettor or early (non EFI) injection engine and wanted it to run on LPG, then some of these systems are able to effectively convert your engine to run as a fully electronic fuel injected engine on LPG, but they are more expensive than the single point systems and even more uncommon than the multipoint non sequential systems. Again, not suitable for a more recent fuel injected vehicle because they work independently of the petrol system.
Many thanks