i have an 86 trans am with a 305 that starts right up every time. It will not go over 4000 RPM and you have to really feather the throttle to get it there, if you step on the gas it will just bog out (this is all while in park). The fuel pressure is alright and the plugs, wires and distributor have been recently replaced. It may be one of the sensors but I am not sure, I sprayed the MAF with cleaner and it stayed the same, so i do not think it is that either. I would greatly appreciate any help or suggestions, thank you.