I have a imp viper with a 454 fuel injected motor, after bringing rpms to say 1500 then cut it back to idle it just stalls out, also the rotor and cap seem to get coroded after a week of replacement and THERE IS NO GASKET ON BOTTOM OF dist cap, should I make one and try that?

mercs IAC likes to die a lot. many guys carry a spare IAC on board like we used to carry spare points. of course, most of you guys don't remember points.