trans tunnel question

[chris mc bride]

Im getting ready to start cutting the rusted floor pans out of panel and have seen few post on here about taller trans tunnels. Mine had very low profile tunnel so figuring when going to turbo 400 or late model trans I'll need the taller one. If you know this to correct let me know. I would like to have it on hand when cutting so I can do it all at one time and be finished with this area, Then I can continue on to rest of the body work the last guy got paid to fuk up and just bondo the heck out of. Also if you bought a tunnel or floor pans from someon that fit worth crap Id like to know who it was also.
thanks