Ok i did a compression check on my 91 formula(350 tpi), my question is what kinda psi should i be looking for from these cylinders from this test so that i know if i'm good or not? Heres what the test gave me:


165,160,160,160,160,165,165,160

so it was fairly consistent, but with a 9:3 CR ratio isn't that kinda low. even for a motor with 109k on it?

 

Its not the PSI that "should be', but more importantly, there are no serious drops in the readings. Like some being 160-165, and a few that are 100-120. Some one may want to correct me, but I dont think that these readings are all bad for an engine with your miles.

I would say try a leakdown test, but somtimes people get upset when the cylinders do leak down a little. IMO, no engine seals perfectly.

BTW, where in the heck is webster?

 

lol, webster is a town in rochester NY.. yea i'm running out of things to do to determine why the car is running rough and feeling very sluggish. the plugs looked good, the plug wires look fairly new, compression test was decent. tonight i'm gonna check out the cat converters see if they are clogging me up. also i think i'm gonna check the timing see if thats off by a lot. other than that i guess i will have to take your advice and do a leak down test. i also know for a fact my valve seals are bad cause the car blows out a cloud of smoke when i start it, but everyone says thats not the problem.. i guess its just one big process of elemination. hopefully if i can get it to run well soon and theres no major problems i wanna throw some bolt ons on it and have a little fun with it this summer cause i'm gonna rebuild the engine over the winter and run a supercharger next year. thanks for the help

 

your compression is great. give some more details on what your car is doing and what you have done to it.