The consensus of opinion around here is:
You can never have to much horse power!
For me though, I DID have to much! Or, should I say at what cost high horse power? Mine was so radical I couldn't "cruise" Waikiki for fear of flooding or over heating of some issue with the motor! 6 mpg on a GOOD day. Running 3rd gear on the FREEWAY to keep the revs up and the plugs clean. But it DID scorch the 1/4 mile!
When I'm done I expect to have "only" around 500 horse power left, that WILL be enough for me!