If the JWT 650s are anything like the 600s then you are going to have to modify the motor mount to make the actuator clear on one side of the motor. Passenger, if I recall correctly. TD05 kits it is recommended that some extra bracing is welded to the manifold to keep them from cracking from the weight of the turbos. Either way some extra work has to be done. TD05s are nice, though, since they come with manifolds and external wastegates.
John Yim (Houston) 91 ZTT Stage...stages are confusing. Just read the mods. :) SM2, Houston Region SCCA "...Just as they're about to catch me... Twin... Turbos... Kick... In..."