We just finished building a CRX for ITA and ran at Lime Rock last week. The car seems flat at the top end. Max rpm in 4th gear is around 5500. What ratio gears should I be running? The car revs to about 6800 in third then wont go over 5500 in fourth. It's my first car and seems to handle great but needs more top end. What should the fuel pressure be? Should the injectors be upgraded? I'm not sure where to start. Thanks, Louie