An H22A is a 190HP engine. Your stock VTEC engine is 145. It is definitely a pretty nice gain. I'd say if you can afford it, it's definitely great, however, I wouldn't spend my life savings on it... It will run you a few grand. Personally, I'm fine with my stock VTEC on my 94 EX. Although, if I were rich I might consider throwing an H22A in there.... Or maybe eventually after a couple hundred thousand more miles, when I need a new engine I might do it. How many miles on your car?