ok my 93 ta i just rebuilt the motor every is new i shaved the heads to 0 deck height, done a bowl port job also, and a valve job. The cam is a cc 284 dur 510/510 lift. Instaled forged 5,7 rods with speed pro pistons. I put a eagle crank (stock stroke) bbk throttle body long tube headers. and a hyper tech chip. I have the stock ingention system on it now. ok the problem is at cold start it cams good idles at around 800 or so and great throttle response but after i drive it for about 30 min or so come to a red light the idle drops to about 500 or so and loads up bad i mean u can see the smoke and the gas burns your eyes bad. can anyone help thanks

 

You need a real tune, not that Hypertech ****. Stop driving it and get a real tune before you ruin it.