Hey...I'm kinda new at this posting thing, but I was wondering what everyone thought of this idea: I have a 66 mustang with a C6 automatic and an open 8" rearend w/ 3.23 gears in it, and a very lightly modified 289. I am considering putting in a 4.11 power-trac or eaton limited slip rear end, along with the Edelbrock RPM power package(600 cfm carb, dual plane high rise intake, and edelbrock rpm cam) and using the 165cc AFR heads. A mechanic told me that the combination would likely get me about 320 rwhp, and probably drop my 1/4 mile from 15.9 to around the mid-12's. I currently have a 600 cfm edelbrock carb and performer intake, and hedman shorty headers...i plan on going with long-tube hooker headers. Sound like a good plan? The mechanic told me that all the parts would run around 2,500, and another grand for installation of everything. Sound about right?