I have a new to me 95 k2500 Suburban with a 454 Tbi. I am rebuilding it to right around 400HP. I've checked tube injector spreadsheet and seems I will need to upgrade to earlier 454 injectors. With my current 32psi fuel pump, I will be 10psi over the recommend psi. Can I tune this out by lowering my tables, or will 10psi be too much and an adjustable regulator or different spring be needed?
Regarding a spring, isn't the spring used dependent on the incoming pressure, not one spring always equals the same pressure? How would I figure out which spring to even use in my situation? Been a long time since I was involved with the whole tbi spring thing with my 90 suburban.