got a question , i have a set of aluminum 429 cj heads and would like to run a set of comp cams 947 -triple valve springs . the valves are stock lenght . question is can valve spring pockets in heads be cut deep a nuff to run the triple spring or do i need longer valves . if i need to get longer valves i would just go ahead and run a solid cam . any help would be great or if i can post any more info i can try . some of you engine builders may know this stuff . thanks !!