You did not specify what size engine you have. I have a 1964 Nova, 3 speed, 194 that is 0.030" over, w/ heated clifford, headers, 2.5" exhaust w/flowmaster, high lift cam and the 390 holley. I am still playing with power valves. I have a slight bog when excellerating, especially on a hill (load) and am trying to balance low end and hi end fuel burn. I have great pix of my set-up...let me know if you are interested.
