it might for a peak--which is like a split second but youll probably only pick up a solid 10hp max---i dont know your car all that well but most cars only pick up a few hp from addong headers----it really depends on how restrictive the stock ones are----you said it had carb and ignition so if the stock headers are really restrictive and you take them off you might see that 15 horse with a good tune of the carb----it all depends....one thing though headers are definatly worth buying for your car.