I have all of the parts I need to convert over to propane in my 71 1210 truck and was wondering what people used for there throttle plate on the two barrel intake manifold? I have a throttle plate that I got from propaneguy but it looks like it's going to be too tall for my truck. I've seen other setups that are lower profile but no one seems to mention which throttle plate they use to work with their impco 425 mixer. Does the stock Holley carb throttle plate bolt right up to the 425? Any ideas would be great, thanks,
richie
richie