1st the cams

so im about to send my head to get ported and ive been told to used 1mm oversize intake valves...those are the specs of the cams im using on ferrea rollers..ive seen 900hp claiming on stock ports...i would rather not used oversized but if i must i will...just looking for opinions....aiming for 900+whp...using 9:1 compression 84mm block..and a magnus im...maybe the pros will chime in...

 

I have .5mm o/s valves intake and exhaust and I regret it, especially when I told my head porter than I absolutely did not want o/s valves.

 

thats what im thinking if the flow thats gain is worth the clearances and tuneability you loose...

 

I think RLZ put an end to this discussion after honda day when they went into the 8's with standard sized valves

 

yea i got my answer already...not worth it..