Well I finally managed to get the idle speed down within acceptable limits. BUT, now the hydrocarbons (?) are too high at idle. I didn't have it tested at a smog shop, just a local garage, so the guy wasn't too sure how to fix it. He said that my catalytic converter was to blame, does that sound logical? I found the stock cat for about $160, and a "high flow" cat for only $90. I have 1 week to pass and don't want to spend money on parts that I don't need. Anybody now anything about how to lower the hydrocarbons (?) on my '87 TBI 350?