Lookin to up grade the computer and fuel system on my 94 shadow t2 swap. I tryed putting a super 60 pack but had a fuel pump went out during the time I was doin the first test. And now Im do dm starced of blowing up the dam car. So I want somthing not so agressive. Was lookin on FM web site and saw the shelby stage 2 computer. What is the difference between the stock and that one. What is a good combination of injectors and fuel pressure.( wondering if stock regulator can be used, or and after market is nessesary).