[Tommy]

The Everett-Morrison I used to have ran a 410 ci Windsor engine and it would break the tires loose in 3rd gear from about 3,000 RPM by just pressing the throttle smoothly to the floor. It was designed for maximum mid-range torque rather than peak horsepower. . . My current car, a Cheetah, has a 427 c.i., small block Chevy that will also roast the tires in the first three gears.

My opinion is that your engine is not optimally tuned for the type of driving you want to do. Rather than throw parts at it, I suggest you find a reputable dyno tuner who can both optimize your carburetor and timing, and suggest what other components might be limiting performance (e.g., carb, intake, exhaust, etc.). That will give you the best bang for your buck in the long term IF you can find the right dyno guy.