Having some issues after replacing the injectors on a 91NA. I replaced all the seals associated with OEM and made sure they all seated correctly taking my time. After finishing the job I am having A huge amount of smoke from the tail pipes and Im thinking it may be a coolant line mismatched for a vacuum line if that is even possible. I would think it would hydrolock if that was the case but it does run. It goes back and forth from running good with no smoke to running OK with a hesitation and tons of smoke. Ive checked over all vacuum lines I can see but alot of the hoses are under the plenum. I would have done the bypasses but the car does not belong to me, but to my dad, and he likes stock everything even though I know it would have helped ALOT to bypass them. Ive been out of the Z scene for over 10 years but am a certified mechanic and recieved a degree from Wyoming technical Institute so am capable of most anything. This though is getting to me and could use some tips if anyone could help. Thank you