05-07-2015, 03:09 PM
if you're not into serious performance, i would stick with 2" 2 into 1, i still have a dual system with flow masters 40's...but it was made for my 5sp set up. you will still have plenty of room around the 435/d20...just dont go with a huge muffler. if you were closer, id give you a 40.
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.