I'm guessing you mean for top speed? Then I'm not sure what it's 'registered for' but I've gotten my 94 sl (same engine & transmission) up to 135. I probably could have gotten it to 140ish if i took more time, but i didn't need the extra few mph. Some people claim 155 in their stock non-turbos, but i doubt it, unless they were going down hill with a huge tailwind.
http://www.stealth316.com/2-ignitionsystem.htm
Yes.
i have a 1991 3000gt SL and it will do 162.7 and that was on a gps at a air strip
my 97 3000gt sl has a governor set on it at 125 mph #2 No, they do no have a speed regulator in the U.S.
222hp
hb
yes, the dohc sl will fit. sohc 3000gt uses a distributer
under the hood
tp many things to think about it
YES.
behind the front exhaust downpipe
I Have a 1991 3000gt Sl and the ECU Is located Behind the radio and can accessed by removing the side carpet panals for your gear shifter.