Demonizer71
Well-Known Member
What's the Difference? Plus will a 72 work on a 71 intake? I've read that the 71 Tquad had smaller primaries for emissions etc.
What's the Difference? Plus will a 72 work on a 71 intake? I've read that the 71 Tquad had smaller primaries for emissions etc.
I think this needs clarification. The large/small primaries were not year specific. They made both sizes pretty much throughout the '70s/early 80s.The only difference between the two that I'm aware of is that the 72 has EGR and ported-spark vacuum connections. Later models had electric chokes, but I'm not sure when they were introduced on production Mopars. Venturi size on early and late models is the same. There's no reason why a 72 carb would not work on a 71 manifold as long as the un-used emission ports were properly capped.
Air-metering vs fuel-metering. A lot of people like to go with the '72 & up for this reason.