Took the car out on Friday having not used it all week and it wouldn’t rev after 5000rpm kept misfiring badly, tried again on Saturday and wouldn’t rev over 4000rpm have only checked the distributer cap and rotor arm so far just cleaned the connections a bit but didn’t solve the problem, now today its not revving over 2000rpm, still starts 1st time just wont accelerate, car is pretty much standard with only mods being an air filter and exhaust.