Roller Rockers for ETEC-170 heads
 

I am building an 350 engine with a ram jet intake manifold and edelbrock etec-170 heads. The heads come with guide plates, or you can take them off and used self-aligning rockers. Should I use the guide plates or buy self-aligning rockers? I was thinking of using the Scorpion Rockers since there made in the USA and seem to have a good reputation. Any other suggestions?