yeah 250 on a dyno jet...divide that by 1.135 and thats the true number. i ran a single belt 3.4 pulley and my car never slipped and went plenty fast. installation was easier because i didnt swap my heads and tear my engine apart. when i put in my L32 i bought new re-maned L36 heads and reused my SS kit, its now on a GTP dual belt setup with a 2.8 pulley