@NeTdEaMoN
4efte runs shit without boost even on patrol and you are running it on CNG , the stock compression is just to low ...!
Change the block to a 5efe one ! more displacement will yeild in a better performance as well , and it`ll run good on CNG as well !
b/w nice car (Y) ! , find some GTTi side skirds and you`ll be all set !