get it direct from JWT.. it's $120 + $9 shipping...
www.jimwolftechnology.com
if they tell you its more than $120, tell them you had been quoted $120. when i went to order mine, they tried to tell me it was $150, and i said.. "hmm...i thought it was $120" and then they said ok.. i can do that..
also look into advancing your timing... there is no part cost, only minor labor. this will give you some quickness off the line and a little power to boot... check out
www.se-r.net for their article on it.