Just put my b18c block and b16 head together. Head is fully built with mild mill, basically resurface (.10-10 thousandths) but anyway everything is installed correctly car drives fine hits vtec looouudd and clear but instead of a pull on vtec it's more or less a bogg or studder doesn't seem to rev as good. I just put the fuel rail on and just got a fuel regulator does this sound like i just need to bump the fuel a little, my buddy said he had somewhat of the same problem with his cams and he had to dump moer fuel on it.
Any help appreciated!!!!

 

im gessing the car is not tuned if not thats your problem

 

I would guess your compression is to low, your vtec x over isnt high enough, and you have zero tuning done.

 

Now that you mention the vtec xover I think it didn't do it as much when vtec was higher on the vtec controller, but as far as the tuning part no, i literally just got the car running and took it for a test drive. I plan on going to a dyno soon just tryin to get it runnin good enough to drive untill i get to the dyno. Think i should try raising vtec and throw some more fuel to it and see what happens. Theres not that much tuning to do i mean yea i guess advancing or retarding would make a pretty big difference though.

 

You realize that if your gsr bottom end is stock that you are loosing .5 in compression with that head. Id drop in a set or p30's or jdm itr pistons, those cams love compression.

 

Yea i know my gsr head had a small crack in it so i milled the b16 head i had laying around to match the gsr, that way i at least knew what it could do. My buddy had the same setup just built head with cams ran 13 80's in a obd2 coupe
untuned, just threw it together and ran it's *** off!!!