Have 66 289 C-Code running strange(coughs thru carb under mod. load) lately so rechecked timming: Int. @ 10 deg. and then upped RPM's to 3000 only added another 10 deg. for a total of 20-22 deg. (vac. adv. plugged) so for now i rehooked V/A up and made it come in quicker so know 30 deg. total. I was at 32 deg. total without V/A last month and 40 deg with V/A? I think one weight stuck? when I bought car vac. module had tear and you could smell gas in Dist. so thinking cent. weights(rusted) are stuck. Question should I (1) remove top plate and get down to weights/springs and fix/lube/replace or (2) just buy a rebuilt single point Dizzy at Autozone for $50 or would a small amount of WD-40 with small tube directed to weights to it without tearing apart. Sorry about long post and thanks for any ideas in Advance.