They are rated for 750 horsepower so should be sufficient. Here's a very important thing to consider.. is your adjustable TO bearing properly adjusted? Mine was never adjusted but apparently just thrown in there by West Coast cobras.. and the car was delivered with blown TO bearing o-rings.. because the travel was at the extreme end and therefore was causing extreme pressure to dis-engage.
Ironically, 3,000 miles later, the next time they blew
this saved me from severe transmission damage (The case was leaking and the bellhousing was full of tranny fluid by the time I got her into the shop.. she sat for 2 weeks waiting for shop time and I think that's when she lost most of the fluid because the tranny internals are good) this problem also allowed me to notice the coolant in my
oil, etc...which kept me from totally blowing my motor. It's nearly rebuilt and is going to dyno very soon.
The McCleod unit should be sufficient if you get the TO bearing properly set. If it's not set right then you can have a range of clutch engagement issues.
__________________
James Madison, father of the Constitution, said, "If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy." He also said, "No nation could preserve its freedom in the midst of continual warfare..."
~~~~~~~~~~~~~~~~~~~~~~~~
http://www.standdown.net/index.htm