my 1987 chevy 454 runs like crap. it runs even worse when I place the vaccum line onto the map sensor. I need some help guys..i don't want to go and dump money into my truck if I don't need to.
Assuming you have done obvious thing like plugs, cap, and rotor, and verified nice blue spark (good coil). I would do a compression test and leak down test.
Can you be more crap specific? What's your setup, intake, etc. ? What does it do or not do, when did it start doing it?
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Hot Rod Forum
2.2M posts
175.6K members
Since 2001
A forum community dedicated to hot rod owners and enthusiasts. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!