hey guys i just got a 90 crx si blows black smoke at full throttle so i want to change out the engine i need some power anways what kinda of power can u get out of your stock si engine with like h/i/e and a few other bolts ons? 1/4 mile time?? ive read alot on the 92-95 civic sohc vtec what will that pull in a rex with some bolt ons?? let me know what way you guys think i should go thanks