I realize that any serious attempt at keeping pace with my local car club that consists of all imports with this old Duster will take far more money than I am willing to throw at it. However now that I got the car to turn nicely and stop far better than when the car was new, my challenge is trying to make some power from it.
I purchased this brand new Holley 2300 series 350 cfm 2-bbl. street carburetor (#7448) for the car today from Speed Unlimited for $290.83 shipped to my door.
The Holley 2300 series carburetors are basically the front half of their infamous 4160 double pumper carburetors. They share the same primary metering blocks, center hung floats, 'V' fuel bowl, metering block & fuel bowl gaskets, same needle & seat(s), and the same jets as the 4-bbl carbs.
Out of the box the 350 cfm unit comes with manual choke, a 61 jet, and a 30cc accelerator pump. Both stock butterflies are 1.690".
They also have a standard 5-1/8" air cleaner flange so it will fit any standard 4-bbl. air cleaner, which is a big plus.
In order to install my Mopar Performance aluminum intake manifold I need new gaskets. I ordered intake/exhaust manifold gasket and a hot box gasket. I went with the premium performance graphite gaskets for both places from HEMI Performance.
These gaskets have optimum "crush" value ensuring a tight seal especially good for headers, but still able to be used on standard factory manifolds with the same flawless results.
The gasket material is a perforated stainless steel insert sandwiched between two layers of flexible graphite to ensure that they have a super high heat tolerance like no other aftermarket gasket.
They can also be opened up with die grinder for ported heads still have enough material to seal properly.
~$50.00 shipped from Australia. Shipping was the same amount as both gaskets were.
