Ok I just sold my 98 GT ...im in the middle of buying a 90 GT 5spd...Im going to ditch the plan on doing the 87 convertible witht he turbo and I think im going to just buy the on3 kit and bolt it up to this 90 im buying...Im thinking of upgrading the fuel pump to the walbro 255 gss340,42 lb injectors,aeromotive adjustable FP regulator,Pro M slotted blow thru MAF for the 42's bolt up the turbo and give that a try leaving the 90's stock everything alone and see how it runs...Does that sound ok?