[mschuep]

Could be the old muffler was masking some noise, but I have had 3 mufflers and this is the first one to do this. I'll try the dollar bill trick. Fuel filter and sparks are new, as well as the cap, rotor and wires. Seems to be running pretty clean, but I should check the books, I can't remember the last time I had a tune up. Unfortunately my toyota has been getting a lot less attention lately than my 911.....Funny how that works. BTW, 1990, 148,XXX miles

Thanks