ok please do not get offended by aby of the things i say here i am not judging on how well you put it in just simply throwing out ideas. you might want to check the way you wired up teh vtec and also the vtec cylinoid. you most definitly need to change the oil that does need to be done right away. also make sure that your plug for the vtec is snaped in tight as well. other than those few things i have no idea other than maybe some bent valves have you done a compression check yet. maybe with a few more test you will able to come up with a simple problem that has a simple fix good luck.