To: JF Quinnelly who wrote (57579 ) 12/22/2000 4:51:59 PM From: nasdaqian Read Replies (1) | Respond to of 71178 Those 1800s are kinda cool. I don't know if you ever saw that show "The Saint" with Roger Moore. That's what he tooled around in. So it must be cool 'cause he later evolved into Bond, James Bond. They have dual SU carbs (mostly) and if you don't know how to balance them it can run crappy. That and the points, cap, wires, plugs and timing need to be in good shape and no vacuum leaks is all it takes. Assuming nothing major is broken or worn out. No computer, no fancy smog stuff. Ya know all this; stuff that we can work on. By the way, everything on my 85 740 (I won't say the V word, but it's a fuddy-duddy car) is accessible. Plenty-o-room in dere. Gobbs. Just thought I'd mention that. If you think it's a valve you could get a $30 vacuum gauge to help noodle it out. They usually come with some basic instructions for distinguishing between leaky valves, blown head gaskets and the like. Could be as simple as a small vacuum hose off a fitting or an old plug wire shorting to ground. Who knows and if you can't see in there. For the high voltage leaks wait until dark and run it. Then you might be able to see the arcs. I'd be surprised if an exhaust valve could create negative pressure in the tail pipe. At 750 rpm, that's 12.5 revs per second meaning 12 times a second the bad valve sucks while the 4 together blow 48+ times. I think I'm figuring this all right. I'm sure someone who knows better, including yourself, will set me straight and I just mostly like to hear myself type anyway. I agree with you that it seems odd that there wouldn't be some readily available hardware and software kit to connect to a pc which hooks up to the cable on the car. Hey, sounds like a start-up opp. Don't tell anybody, ok. And lastly, what's a stock trading mogul like you doing working on your own vehicle?