Possible cam install

if this is your cam, then you cant use stock valve springs.
even if there 340 valve springs.340's did not have a high lift cam and you might get coil bind using stock springs.Use the spring comp cam recomends for your cam.Most motors that blow up when there brand new are because of the wrong valve springs being used.
EVERY VALVE SPRING IS RATED FOR SPRING PRESURE AND LIFT.
THE SPRING PRESURE INSURES A GOOD TIGHT VALVE FOR SEALING AND A RPM RANGE TO RUN AT PLUSE ,NO COIL BIND.
This is very important.

Also the valve guides might need to be cut ,if they hit the valve retainers.
Just double check for enough clearance.Call comp cams and make sure you have everything you need.Find out if you need a ajustible rocker arm from comp cams because the base circle on the came might be smaller then oem.
Just call com cams and find out before you do all this work.
Here is a note from comp.cams about the valve springs.
Product Details

Xtreme Energy Cams™ are designed to take advantage of the latest improvements in valve train components and the newest developments in camshaft lobe design. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration. Xtreme Energy Cams™ also deliver increased engine vacuum.

Specifications: * Advertised duration: 268 in take/280 exhaust * Duration at .050 in. cam lift: 224 intake/230 exhaust * Gross valve lift: .477 in. intake/.480 in. exhaust * Lobe separation: 110 degrees * RPM range: 1600-5800 * Idle: Mild rough * Great for street machines largest cam for stock converter 273-318 works best with 2000 rpm stall

Recommended parts: * Lifters: CCA-822-16 * Valve springs: CCA-901-16 :cheers::cheers:(stock springs can not be used):cheers::cheers: * Retainers: CCA-744-16 * Valve locks: CCA-604-16 * Valve seals: CCA-504-16 * 1992 and up Dodge Magnum engines require the use of rocker arm kit CCA-1425KIT.

Not legal for sale or use on pollution controlled motor vehicles.

This Comp Cams Xtreme Energy camshaft is built to take advantage of the latest cam technology to provide maximum performance. By using an aggressive lobe profile this cam provides better throttle response and more top end horsepower than equivalent cams from other manufacturers while delivering increased engine vacuum.

GOOD LUCK.