I installed Hedman Headers on my car about 4 days ago ran it at the track and it was a slower time. I was told that i could be that the tune is bad now. If i need a new tune which is best one for my car.

1992 Camaro B4C
5.7L L98 -
All i have is a cool air intake
Headers with 3'' exhaust - also took off the smog/air system and installed a idler pulley with a shorter belt.

Please if possible please help.

 

Which Hedman headers?

 

68460 is the part number they are 3 collector and I have 3" exhaust all the way back...just want to see if anyone has had the same problem bcuz of their tune...I have a stock tune and have installed the headers and deleted the smog pump..

 

Im not for certain considering mine has no computer but I would say with the addition of long tubes, and deletion of the smog pump, that a retune would probably fix your issue.

 

Okay I hope a retune fixes the problem but does anyone know a place to get a tune for a l98 5.7l 1992 camaro... I heard Pcmforless is good but they are not very descriptive on which pcm fits which cars. Anything will help thanks

 

You might post or check in the ecm or tpi section and get some more help there.