1973 dodge dart carb install

I don't own this car,I often whore out my automotive talents and work on other peoples cars. This is a 1973 Dodge Dart Swinger owned by Ryan Tucker It has a 318 with a 904 tranny and 4.10:1 cogs in a 8 1/4 rearend.It also has front disc brakes and large bolt pattern Rally wheels. Did I mention It was a California car with very little rust? A huge change from the rusted out hulks that usually grace the driveway.

To continue the persistant carburburetor theme on this blog we spent a day swapping out the old crusty 600 cfm Holley (left) for the shiney new 570 cfm Holley street avenger

When test fitting the carb we noticed the throttle blades caught on the manifold. So a carb spacer was needed

We ended up using this old Mr. Gasket carb adapter on an even more ancient Weiand intake manifold.The throttle linkage was really hacked together by the previous owner which caused a ton of grief.

The new carb ran nicely,The stock jets were #54 which were waay lean I went up to a #64 (the smallest I had) to fatten up the fuel curve.besides the weiand intake the 318 also has an aftermarket cam with unknown specs.The headers flow into a pair of glasspacks. This little car moves pretty good for what it is. It still needs the electric choke hooked up and maybe some additional tuning, But the owner is happy with the performance so I'm happy.

                                  
     I started getting the Holley 850 cfm double pumper ready for the challenger,I did a quickie cleanup and added a chrysler throttle lever extention  HolleyP/N 510-20-7

I also had to change the power valve from the stock 6.5  to 3.5. The method to determine the correct power valve is to take a vacuum reading and divide it in half. I had a vacuum reading of 7 inches which gave me 3.5. here I am getting "intimate" with the power valve to make sure it works.

 Heres the 850 installed and ready for action! next on the to do list is to get the slicks mounted and install the long lug studs on the axles.