I would just be careful with using the cam to adjust the DCR to try and squeak it in under detonation. The thing is that if the intended use for the car is street, road course, and autoX you don’t want a giant cam with a bunch of duration. It’s much more valuable to have torque in those engines, especially for street and autoX use. And if you want to keep the gearing reasonable to maintain a decent top speed for a road course without using an overdrive you won’t want a giant cam either. The Lunati I run is not a huge cam, but already I have to slip clutch and manage some footwork with 3.55’s and 26” tall tires, it wants lower gears.
Since the engine is still in the build stage, I would just set the SCR a little lower. Take a look at autoxcuda’s build. The simpler way to go about this is to give up a little horsepower. Which is honestly what I should have done, gone down one size on the cam, kept the gears and slid a fatter head gasket in while I was at it. I’d have lost some power, but I would have saved thousands over buying everything to do a T56 conversion. With a 360 and aluminum heads you should be able to make 400 hp in a very streetable engine, and that’s enough power to have fun with in your intended use. If you’re going to spend extra money, spend it on suspension and brakes. That will make your car faster than an extra 30hp.
I know if I was going to do it again I’d build a 450 hp stroker instead of trying to build a 425hp 340. Way easier to deal with. The stuff I did chasing the last 30 hp is what makes my car harder to deal with as a daily driver.
