170 slant6 63 help

I set my 66 Valiant 170 slant up with just a 2 inch id ex system and that alone made a huge difference on the hiway. Once it's got some revs it flys.This with a 2 bbl should be all you really need for a nice street ride.I'm now getting ready to put that set up in my Valiant wagon or this little 65 V100 I have with a 4 speed behind it. I think you'll like the 170 when you get it set up the way you want it.They are really good motors.