-cheapest unreliable way - stock H22 with 15lbs boost
-around the same cost - built H22 (around 10:1 CR) with 150shot nitrous
-way i would do it - build H22 with 11.5:1 CR and run about 10lbs boost
-or - build F23, raise compression, and run 15lbs

and they will all take a good standalone. the first way will blow in no time. either of the ways is going to run you probably $10k to do it reliably

i ran my stock F23 with 15lbs and made 269hp and 312ft/lbs

just like others said - dont listen to ODUB