Engine builder for LS1
The tuning shop suggested that the Reluctor wheel on the Callies crank had slipped as they tried adding 40 deg of timing and that was the max HP.
It's Callies fault, not the builders, so my friend took it back to him so he can send out the drank and freshen up the engine. I can contact my friend if ur interested.
I agree, cam, heads, raise comp a little, good exhaust.
What year is the car. Auto or 6 speed. If it's an auto and you get to that level of HP, gonna have to dump some coin into the slush box.... With the slush box, easier on the whimpy 10 bolt.

