thinking about it. how much hp gain is this and is it safe for your car?

 

Depends how much HP you want and the way the car will be used.

A bigger cam isn't all about "hp". Yes, a huge cam will produce a significant increase in PEAK engine HP, if the intake/heads can support the required air flow, and the valve train can support the increased RPM. But a huge cam may leave the car undriveable under "daily driver" conditions, and may lose valuable low end torque, compared to a cam the is selected to match the engine's air flow and RPM capabilities. The object is to match the "area under the curve" to your driving requirements. A "street" racer needs a different approach than a track car.

A better question to others would be:
-what cam did you chose?
-what kind of performance increase did you see?
-how was the driveability?

The info you have to provide is:
-how will the car be used/driven?
-what is the long range goal - do you plan additional mods, like headers? ....1.6X RR's? ...eventually, heads with improved flow?

 

^ What he said...too many people only focus on how much lift a cam has and how 'lopey' it sounds at idle. There is a so much more to it that can only be touched on. Your best bet is to ask questions here and to call a couple cam companies directly, tell them what your REALISTIC plans are and what they recommend- you'll prol be surprised that they will recommend something smaller than what you were thinking...as your lift goes up typically so does your hp curve in rpms. How often is your DD car going to be turning 6500 rpms??

Its hard to make a track rocket and a car that you want to DD. So just like Injuneer said- think about your plans and what your goals are- and be REALISTIC....