I never did a Hydraulic cam but I had a solid cam 71 That I think I milled about .080 but gave about .020 back going from a .017 steel shim to an .037 Fel-pro blue. Stock cam I just put in i think they were 1.88" (360 size ) intake valves, a Factory aluminum 2BBL a 6 into 1 JR Header and a single 2 1/2" exhaust with a walker super turbo muffler, this was back in 1988! Used a 2 barrel 318 carb but I wanted to try a progressive 2bbl Weber on it and try to get 30MPG.

It ran really good....for what it was but the compression (and my mid 20 yr old lead foot!) eventually wore out the tired old rings.

I always wanted to find an old 170 with the short stroke and the old aluminum case 833 O/D 4 speed and build an old 64 valiant coupe and turn it into some kind of MPG champ.