Re: 421 vid. Tuned vs Not Tuned! |
Subject: Re: 421 vid. Tuned vs Not Tuned! by dan0617 on 2012/2/19 15:36:11 Sounds great! Any idea what your timing was at idle before and after the tuning? I have duals on mine with stock LT1 mufflers, but no resonator or X pipe or anything. Mine sounds very free flowing, kind of airy almost. An X pipe is on my to do list. |