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Y'know, it's always something. My car is running poorly. Doesn't want to hold idle, bucks and pops at all RPM ranges, painfully slow. This is a new condition - I mean, the right side of the motor has always been a little suspect, slightly noisier & less smooth than the left side. But whatever was a little bit wrong before, just got a lot wronger. Here's what I've learned, and what I'm trying to deduce therefrom - please, oh learned ones, tell me where I'm right & where I'm wrong? Fiddling with idle, mixture, advance, retard produces no desireable effect. Valves, gap, dwell all within spec. Plugs firing correctly. Compression on #2,3,4 all bteween 100-105. #1 down around 90lb. Now here's where I start thinking... #1 plug is a little dark, but NOT completely fouled. No blue smoke, so this pretty much eliminates pistons, rings, cylinder walls - right? Fire - yes, actual bursts of flame - occasionally issuing from both exhaust pipe and carburetor. Which means it ain't just one stuck lifter, flattened lobe, or mangled pushrod, right? It's both valves that aren't doing (or being allowed to do) their jobs. Head studs all seem tight. No detectable knocks, grinds or other hideous noises. So, what are my best & worst-case scenarios here? What have I overlooked? What else to check before I assume a cracked head, pull it and get new? Thanks. --timmy '72 square '69 square Jax, FL ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/