Hey i was woundering if anyone else has this problem with their '89 K5 Blazer. My engine, tranny, and gears are stock and i am running 33in BFG's with a 2in spring lift. My acceleration sucks and my tranny wont shift at anything over half throttle. Im thinking of putting 4.10's in her, but would be a waste of time. Help would be appreciated.
5.7l 350 EFI-Motor
Gears are stock maybe 3.73, not sure
i have [bleep] for acceleration and i wont shift unless i let off. It also shifts late. Over Drive wont kick in till like 65mph and it down shifts into 3rd at 60mph
When you give it the gas does it start to shudder? My 92 Blazer did that and it would not start a few times. I went through a fuel pump, plugs, wires until I found out it was the dist. replaced that and it ran great.