[RICK LAKE]

Sparks What are you looking for from the motor?? More torque and HP, Nasty loping idle, 300' of smoking tires, Gas mileage, drivibility, or cruising?? We need some more info than what you have given. To start with, your motor is bigger than a 427, so the camshaft for a 427 will seam small for an extra 40 cubic inches you added to the motor. If you want a smooth idle and a ton of low end power(TORQUE) a cam with a 580" on the intake and .590" on the exhaust with a 112 LSA will give you a stump pulling monster. What gears in the rearend do you have? what trans ratios are in the trans. This will all effect how the motor runs and the car drives. With the motor being a small stroker, the rpm limit would be 6,500 rpms, with a 6,700 MAX limit for long life of the motor. The other issue is the valve springs, how weak or strong are they?? 330 at total lift is a little weak for a 600" lift camshaft, what rockers are you running?? They need to be matched to the camshaft profile to get max power out of cam. I am running a hydro roller 587"-607" crane with 482 cubes. 10.5 compression motor puts out 500/500 HP and torque. I have work done to the heads, porting and run beehive springs. The only down side is a small surge at 5,800 rpms from the valve springs. Motor will run right up to 6,500 without any problems. Send some more info on this and call KCR for their camshaft ideas. He will ask the same things about size, compression, intake manifold, carb size, head work. The biggest power killer in your car is the side pipes with all the back pressure they have unless you are running a race pipe. 1-2 psi of back pressure is the idea number for max HP and Torque. Rick L.