vsracing.net...they are a site sponsor on turbomustangs.com....they have 3inch core for under 150 and 4 inch cores for like 180, i run the 4inch core on my truck and have had no problems, i picked it up used for a guy on the site for $100..Your goin to spend just as much on a used diesel truck one that isnt worth a crap


78 Adventurer 150small block turbo'd 360w/Borg S475....smoke'em