Joined: Jan 2011
Location: Olympic Peninsula
Hard to tell without hearing it first hand, but here is an easy way to check for exhaust leaks:
Get a spray bottle and fill it with dish soap and water. (Heavy on the soap). Set a shop-vac on the "blow" setting. Blow air into your tailpipe (Helps to have a friend hold the hose to your exhaust, or use tape). Spray any suspect areas with your soap and water mixture. Spray joints, couplings, flanges... ect. If you have a leak, you will make a bunch of bubbles where the air is escaping. Good luck!
1968 Mustang. 351w, T-5 Five Speed, 8.8, 3.73 trac lock rear end. Power, four wheel disc brakes, (CSRP up front, 8.8 discs out back) Shelby Drop...