1956 Chevy 2dr 327 4 speed 4. 88 gears

Testing 327 with the 4. 88 gears before I put the 3. 08 rear back in to drive some place. The 4. 88 are fun but 40 mph is too slow. Plan to put some 3. 55 or 3. 73 in my posi for next summer. Engine runs comp cam 280H, 041 heads, 600DP Holley. Super T10 with deep 3. 43 first gear (with the tall 29 inch BFG) for the little mouse to get into its power range of RPM. First run 1st gear caught me sleeping :) Have had this car for lots of years, it had seen many changes. What s next