65 barracuda no bottom end need opinions

Welcome!

I have a 273 with a Mopar .474/.474 cam, 500cfm Eddy carb, Performer intake,headers, Accel 300+ ignition. I have no clue what compression I'm running but it will lay down some nice posi marks with a little tire smoke floating around. I'm thinking about going with 3.91 or 4.10 gears.

I guess the four speed helps me out but you should be able to spin the tires. I really believe you need to ditch the heads sure enough. Get back to basics and work yourself out to the edge. I believe the 340 cam is more like a .440 lift cam isn't it?