Hello everyone,

Unless you have swap out motors your L98 doesn't have an opti spark. 

Thanks for the reply, I was thinking that when someone suggested that, and I was like I have a distributor by the Plenum...I'll check that out, thanks again!

I agree with CaledoniaBrian. You might have a slightly clogged catalytic converter. Be grateful that you don't have an LT1 like I do. I just had my Opti-Spark distributor replaced on my 1993 Base model. Along with a new water pump it cost me well over $1900 in parts and labor.

|UPDATED|6/15/2017 5:23:31 PM (AZT)|/UPDATED|

Well fellow C4 er. Have a 93' LT1 , I'm not a pro. By any stretch of imagination. Mine was leaking oil at back left corner of intake manifold (commen) .did a little research ( you-tube) and took it on over last winter , gasket kit cost $. 39.00 and after removal of throttle body, air intake, water pump, drain cooling system opti-spark and damping puller . The last opsticle was the oil pan , had the car up on jack-stands, about 20 inches , tires where about 8 inches off ground , was able to drop oil pan start replacing oil pan gasket and the rest was reversal of tear down steps , worked out well ! Have sum faith in yourself bro you can do it , if it ever happens again , total job was about $50 bucks good luck