received the goods a day earlier than expected, excellent!. Firstly, proform has recently started producing them from aluminum instead of the brass/zinc original. a bit disappointed, also for some reason there is no vacuum port on the metering blocks (vacuum advance). Finally, I would recommend checking the fit of all screws and bolts before final assembly, in my experience the threads seem a bit patchy. , hasn't been installed yet, hence a 4-star rating. Hope that helps.