Thor82

I'm going to be rebuilding a trans for the first.This is for my daily driver Chevy HD 4x4 crew cab non race truck.Im wanting to know if internally dual feeding would help or hurt reliability of the trans being street driven in a heavy truck.I want firmer shift but not part breaking neck injuring shifts.lol.I have a transgo HD2 kit but at this point only really planning on using the internal parts and using the springs but a self regulating sonnax boost valve not the relief valve from the kit.So my question is,would using the HD2 VB springs be a bad idea and should I drill the plate feed holes larger at all to give a better shift?Would this tranny hold up for a long time?I do plan on a turbo in the future,more on the modest side though for a daily driver and very rare towing.When I say daily driver I mean about 25,000 miles in last 6 years.