hey guys i just got my car runnin after it being apart for awhile and the first night it just took it down the street and it was fine last night i started it up and was letting it idle and all of a sudden the RPMs started dropping the it wne down to like 500 RPMs (at first i thought this was the comp. adjusting to the new cam ) but then i shut it off thinking that i needed to re-adjust the drivers side valves cause it was making aloud tapping noise from that side but it was hard to tell cuz the header gaskget needs to be replaced on the same side. so this morning i went out there popped off the drivers side valvecover to check all the Rockers arms and there all tight. they were noisy so i thiught that they had worked themselves loose but thats not the case, when i try to start it up she just turns but won't catch at all. then i thought may its a comp. prob so i disconnected the battery for a few mins. and tried it again and the same thing! I DON"T GET THIS CAR!!!! all the vacum hoses are hooked up, its got a brand new opti, its got 1/2 tank of gas, the batt is brand new WTF!!!!!!!! one other werid thing the first night i took it down the street and brought it back she was heating up and i shut her off and just coasted in the drive wasy and noticed the speedometer was pegged out to 150mph! the heating up past was my fault, and i have since taken care of that but everything else is really "F'ing" with my head!....i think im gunna go and get alittle foxbody 5.0!!
NOT!
Any help is always appreciated!!!

 

I don't know about the valves making a lot fo noise but the weird idle problems sound like air/fuel ratio problems to me. as for the speedo pinning itself at 150 I have seen this once before and it freaked me out too. My IROC did that... but I have no idea why..

 

ttt

 

ttt

 

you should definitely try to get it on a scanner and see what is happening in there. If you can, just buy the $60 cable from Andrew, download Freescan and go for it, you can even do it on a PC if you don't have a laptop.