[Tigers] Exhaust Set Up

[Joel Martin]

Hello All

I think I have settled on 40 Series Delta Flow 409S mufflers with
2.25" IN/Out 
inlets (Could not find the Stainless in 2") and SS headers which
I believe are 
1-5/8" in size.  Advice received to date is to place a cross
over tube behind 
the collectors.  Engine is 289 HiPo with toploader.

My
questions are:  How far behind the collectors to put the cross over tube -
does not look like much room here in front of the X frame or should we put it
behind the X frame?  2.  What diameter pipe should the crossover tube be?  3.
Which inlet/outlet of the mufflers do I need?  Left, right or center in? 
Left, 
right or center out?

Thanks in advance for the information.

Joel
Martin
1966 Mk1A