Not a Ford, actually Pontiac. 2000 Bonneville with a 3.8L supercharged. It has too many mods to list including a big cam, ported and polished heads, roller rockers, bigger valves, headers, built to the hilt tranny, intercooler with custom made ice box, ported bigger supercharger, and electric water pump, etc. Its about 400HP to the wheels or so. Need to get it retuned and dyno'ed again. Runs 12sec 1/4miles though. Very fun to build and work on, but often a headache and broken.
I run Mickey Thompson drag radials at about 13-15psi on a spare set of rims I change out at the track. They are the expensive ones that require tubes, which are also not cheap each for drag tires. With those I can hook up about 1.84 60's. On street tires best I ever got was a 2.08 in Oregon and could only get 2.2s in Boise at Firebird.