buickGN3:16
Active Member
- Joined
- Jun 29, 2012
Ok so i was at the drag strip last friday night & on my 4th run my car started hesitating about the 1/8 mile point & now its down a cylinder, compression test shows the middle cylider on the passenger side with 0 psi & all the others were between 130 & 150psi. I put a little oil in the spark plug hole for the bad cylinder & tested it again & it didnt help. Rockers springs & push rods look good in the head. Possibly a cracked ring or a burnt piston? Scanmaster showed 780 so i guess i leaned it out huh? Fuel pump is a 255 & injectors are 42.5 lb 009's. Any one have any advice??