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71 3512100 340 Intake ~ Besides the 71 340 correcgness, what's special

Alan S

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about these?

Any input is appreciated. I have one that is pretty heavy and don't know if it is worthwhile to throw on my 73 318. Currently have an eddy 318 intake and running a Holly 625 Street Demon.

Any input is appreciated. TIA.
 
Won't make the teen run any better.Stick with what you have. Draw back of the iron spread bore is that it weighs close to 50 lbs. The good is (I think for 71) no EGR. and they flow great.Best to use a Thermo Quad on it ! A buddy of mine was looking for one for his 71 Challenger and found one,cost was $100.He was glad to pay because it had the right number on it.He was putting the Challenger back to factory stock.When he got the car it had a LD 340 intake and a 780 Holley.
 
I'm actually looking for an OEM 340 intake manifold part #3512100, if you are interested in letting it go. Thanks!
 
It's the single best production 340 intake. The '72 is pretty much the same, the '73 gets floor jets and they start to go down hill. On your 318 it will run well when paired with a mild camshaft (like under 218* @ .050 duration), either 340 exhaust manifolds or cheapie headers, and a Thermoquad or 600-650 cfm spread bore Edelbrock.
 
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