Torque convertor and detonation

Yeah I will put in a stiffer spring.
AJ, change of subject, but quick question for you. I tuned the carb using the methods you described and it runs very well, great transition off idle and good response through the rev range. It is an eddy 500cfm performer, #1403. If I want to swap on my 600cfm performer, and get it as close as possible before install, should I match up t-slot exposure beforehand? Anything else I should swap over or setting I should copy? Again, the 500 runs perfectly I am just leaving power on the table.