my civic's on carburator and also on cng its a project car im saving up for mods and yeah i will loose the cng in a little time but the problem is that on cng the car run as good as anything but when it comes to petrol and i try putting my foot down and go with the first gear it gives me what i want as i go between 5000 to 6000 rpm it starts going out as if there aint no petrol in the tank so i just shift i keep pushin it it goes till 4000 and then the car just gives up it dies it freaking dies i try switching in 3rd but it wont go . :@ anyways its fine if u drive it when ur not in a drag race what do u guys think is it a tuning matter or is it that my carburetor is broken or do i need to loose the cng asap i dont want to do that coz its my daily aswell untill i dont buy another mehran so do tell thanx in advance and yeah i have a D15b