This is the bugaboo with buying a finished or semi-finished car and the reason that I and others on this board build their stuff from scratch, so that we can engineer the whole mess properly, gaining max performance from the finished package.

You have no idea of the static compression ratio and how the cam relates to it, so you have no idea of how to alter components to gain the max from them. You have no idea of the squish and whether or not you will be able to operate on pump gas with optimal ignition timing. You have no idea if the torque converter is matched to the cam or if the motor has flat-tops with small chambers or domed pistons with big chambers or anything else about the motor.

Now, you have to understand that I'm the type of guy who would begin heart surgery with a hatchet, so I would tear the motor down and measure everything and find out what's what and how to proceed with making the whole mess viable. But that's just me. I wouldn't have bought it in the first place and I'm certainly not suggesting that you tear the motor down. I'm just saying that's what I would do if I had come into ownership of the car.