porting gt 40 heads
 

I just picked up a set of brand new bair gt-40 heads for two hundred dollars. plus they came with new manley race intake valves. at a swap meet. just to show you deals can be found at swap meets so dont miss them. (i'm ex vendor). heres my ? i read about them on some web sites. and they make it sound like you can put 194-160 valves in them with no work. is this possible???? or do they need hoged and new seats so the valves sit right
no its dumb ? but thought id ask. also does anyone know good sit on porting them or just gt40s in general. thanks a ton. And remember
there are deals at the meets.