Great filter. I use it before the pump and it's not a problem on a small carbureted engine. With a small Edelbrock electric pump at around 30 GPM it is very close to the carb, so I decided to put a good filter in front of the pump. They fit the 58mm filter housings you see on Amazon, not sure if the 50mm filter housings but we'll find out soon. Update I just got a 50mm filter housing and this filter fits in, hooray! Also according to Aeromotive, this filter is compatible with diesel fuel. I asked a question and got an answer for those who need to know.
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