Hi i have a litchfield type 25 Mk 1, Im in the process of getting all the bits to get her upto roughly 500BHP. I will only be using this car as a fast road car but i want something thats goin to be reliable so far i have:

front wing induction kit
Turbo intake pipe
800cc injectors
APS DR735 front mount intercooler
Fuel pressure Reg
800 cc injectors
Mocal oil cooler
Autronics SM4 ECU
SC46 turbo

I spoke to ian litchfield to find out what internal i had in this car and all he could tell me is that it had forged pistons, What do you guy reccomend to make this car bulletproof? I already no i need a new clutch but i have been told the gearbox should be fine, any suggestions would be great.