Jeff, you've lost your mind. I have modded cars for years, several very fast cars......and a couple of very fast LS1's. 180rwhp with an ignition kit, filter, gapped plugs and fuel catalyst? Put the crack pipe down or I am gonna smack you!
A. A big spark ignition is useless unless you are blowing out spark via forced induction. I have owned 3 supercharged Mustangs that made over near or over 500rwhp and a turbo'd 99 Cobra that made almost 600rwhp and none of them yielded spark blow by.
B. A free flowing air intake (ie: K&N, Air Raid, AEM, etc) on an N/A LS1 will only yield about 5-8rwhp max.....unless your already hosing, running and SC or Turbo on an OEM paper filter, then it would yield a larger gain due to the restriction it has been causing.
C. .075 gap increasing power? Run that much gap with any power adder and you have had a nad day.
Again, put that crack pipe down. ;D