hi i gotta a problem hoping you guys could help me out as i new too lt1s my car is a 95 z28 its hard too start always takes about 10 secs too start it will always start though just takes a little bit im not sure what it is the oil seems too have a gassy smell too it also but not like dripping off dipstick just a tad bit smelly and a lil over full was wondering if there's any correlation between the two things because i got told it was the fuel pressure regulator that keeps it from starting easy due too lose of gas pressure upon start? and also it stumbles every now and then when you take off thanks for your time guys hope you can help me

 

Check the fuel pressure.
Check if its holding pressure after you prime it up.