i've become more impressed with my Stage 6 heads lately. mine are on a 400 block with max wedge intakes i use a Super Victor intake. in my 'cuda the engine keeps running in the 10's which is a no no because i'm not teched. the 950 carb is backed off to the point the secondaries are only just opening & the timing is reduced to 30* total & yet yesterday with brand new MT et drag radials it went 10.93 again & had me banned from the track. i guess i'm going to have to buy some more safety gear.