The GT-40 may flow a tiny bit more, but many tests show otherwise. Have your Cobra intake's lower ported and you will gain quite a bit depending on your currect combo. If you still need more, have the upper extrude honed and you will have an intake good enough for pretty much any engine.
I have GT40P heads on it now and next week putting on Edlebrock RPM Performers. I have E303 Cam, 1.6 Rockers, 155LPH fuels pump, Fuel regulator, 24lb injectors, underdrive pully, Cold air induction, FMS Headers, H-Pipe with 2 chambers turndowns, Accel coil, MSD ignition, 65 mm Throtle body, 75mm Mass air.
Thats pretty much it for the engine. The car only has 17K on it and is an 88 GT. I do not want to drag the car ,but have fun on the street. I am Looking to increase power without going to a supercharger or getting into too much machining expense. Any Ideas?