ok i just swapped the engine out of my 88 crx dx. i dropped in a d16a6 out of a si. it has underdrive pulleys ,adjustable cam gears,shved head,port and polished and a few simple mods i.e:intaked exhaust,,,,,what can i do now to get faster,and be street legal?
i thought about a 50shot of spray,,good i dea or no??

 

lil spray would be OK

i'd look into a cam
z6 headgasket

 

a cam would be great for some extra horses. a little spray has some goods and bad, one it gives you a decent amount of extra horsepower but it can cause you mess up a good motor.