Lunati Roller Cam + X Heads

I’m making a similar adjustment to my 340 that is 30 over, 10.2-1, will be dropping on 271 at .500 ported Eddy rpm heads with 2.05 valves and AG intake that @yellow rose did back in January. 4 speed with GVOD and choice of between 3.91 to 3.55. The cam we picked is a solid FT 234/234 @.50 107+2. Like you my current cam is not a great pick for the street and does not have low end grunt that was wanted.