It seems as though i have a header leak coming from the port nearest the third cylinder on the driver's side. However, i can't tighten that bolt anymore (it just won't budge). Is there any way i could seal the leak up without taking the headers off? Also, could it be anything else. It feels like the air could also be coming from under the rocker panel cover, which i did recently remove. Could it be from there, or would oil definitely be leaking too?
There's got to be some sort of sealant or something i can use to make this job easy.

Jon

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89 GTA
Beautiful Gunmetal gray, LB9 305 and T5 tranny. Only 60,000 miles!
Dual cats, 3"flomaster
Accel 300+ Ignition, wires, cap, coil, etc
Airfoil
KN Airfilter
Removed Screens on MAF
SLP 1 3/4 headers
No Smog/AIR system

 

I am having the exact same problem and my engine is loosing compression because of it so now my car is slower after the header install.

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91' red RS convert.
71,000 miles
89' IROC hood
red Z-28 16" rims
potenza re730's
MSD ignition
MSD coil
K&N fiter
350 ported polished heads
hypertech chip
flowmaster 40 series cat-back

 

ya know what? i'm a dumb shmuck.. i just needed a new gasket.

Jon

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89 GTA
Beautiful Gunmetal gray, LB9 305 and T5 tranny. Only 60,000 miles!
Dual cats, 3"flomaster
Accel 300+ Ignition, wires, cap, coil, etc
Airfoil
KN Airfilter
Removed Screens on MAF
SLP 1 3/4 headers
No Smog/AIR system