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  1. allyoop

    Advice needed re suitablity of Impco 425 lpg/propane carb for a particular engine

    Thanks guys, Franz, from what I've read here I think i will fit a 225 and attach it to the end of the alloy air 'horn' which runs along the outside of, and attaches to, the 3 2 inch s.u carburettors. I did initially have concerns that a 225 might be found wanting in regards to it's ability to...
  2. allyoop

    Advice needed re suitablity of Impco 425 lpg/propane carb for a particular engine

    Thanks a lot for your help Franz, I have calculated the cfm requirements of my engine as per the(seemingly somewhat unrefined)equation supplied by Impco (I may be missing something but I say this because the equation is on one hand based purely on engine capacity, with no regard for valve...
  3. allyoop

    Advice needed re suitablity of Impco 425 lpg/propane carb for a particular engine

    Cheers Clive, However I do want to make this car my daily transport and to do so on petrol would be unpractically expensive (not to mention that for a number of reasons i prefer LPG over petrol as a fuel anyway).
  4. allyoop

    Advice needed re suitablity of Impco 425 lpg/propane carb for a particular engine

    p.s, I should have mentioned, the intended useage of the car is a combination of normal city driving and out of town/open road ('freeway') driving, and I tend to like driving 'hard' (i'm always in a hurry), and I'm hoping to achieve a trouble-free, reliable result without too much ongoing...
  5. allyoop

    Advice needed re suitablity of Impco 425 lpg/propane carb for a particular engine

    Hi Guys, my name's Al and i'm a Mechanic here in New Zealand I'm hoping to get some knowledgeable/experienced advice regarding the most ideal components to convert my car to LPG (Propane)(DEDICATED LPG-I.E NO PETROL SYSTEM). I'm mainly just wanting to get it off petrol and onto LPG (Propane) as...
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