What guideplates for my GN1 heads?

[Black Power]

I bought a set of GN1s with Scorpion rockers (not the pedestal type, they sit on studs). The tips of the rockers don't have guides (non self aligning), so I am going to need guideplates.

What guideplates do I use? I saw a thread about someone using a set of Isky adjustable guideplates that are for sbc with a 5/16" pushrod, but then on Summitracing's site they say you have to weld them

Can someone help me out here on what I need to do on these things?

Will

 

[Trbobuick]

Just buy them from champion...they are nothing like a chevy. Some are offset and others are straight .