I think more like 200 HP, due to the a/c and the manifolds. A stock 318 only had 150 HP. The only thing thats going to increase the HP is the intake ,mufflers, and the carb. The cam wont have much effect due to the exhaust manifolds. Now if you put hedders on it, and drop the a/c as this hurts the power more than anything, they will help pick up the extra HP.