ok i have a 91 camaro rs 305 tbi i want to keep the tbi set up i just recently put in an elgin cam 435 462 lift cam and 198-210 @.50 duration. i installed edelbrock t.e.s tubular headers with a magna flow cat back and am soon putting in the edelbrock tbi manifold with holley tbi unit my problem is thet the car runs really irradically when started but will smooth out for a bit then go back to running rough. it runs really rich and black sut all over the tail pipe any recomendations on what chip to use or in what ways i could deal with this problem
thanks

 

Your going to have to get into burning your own chips I think. It will make your life alot easier when it comes to doing perfomance mods.Not to sure about being able to drive it like that until you get the program worked out. You may beable to get by for a while by advancing the timing a bit and Messing with your ilde srew, but not something that I would recommend. Make sure you have no vacume leaks etc. Im sure someone else will help out but just my thoughts. Hope that it helps

 

check for service engine codes. did you disturb any sensors. Is 02 sensor functional? i dont think it would run that poorly? might want to consider doing a datalog and see what is going on. you will need to learn how to do so anyway. why not start now? you will need a ALDL cable and a laptop and logging program(free).

 

thanks were can i get this program and software

 

The datalogging program You can check out Tunerpro. Not sure about the actual site name but Just google it and it should be easy to find.

 

same with winALDL.