I have a question about the performance difference between a modified America vrs the stock 865 engine. With all the technical knowledge out there what is the general opinion.

Modified: America
Epco mufflers
AI out
Uni and air box drilled
130,42,TBS,2 shims
Would the performance be the same as a stock 865
or
would the addition of the Freak kit and different jets equal or surpass a stock 865