Seems pretty solid to me. You could probrably update your ifs if you wanted too. And if you found an indy 400 or 500 motor you could probrably make it fit in that chassis. Gotta get a windsheild fot it though. Gotta get some pics of the 30 dollar liquifire.
The 400 from an 85 will bolt right in. I can get a brand new windshield for $60 cnd. This sled and the 1985 400 are both race sleds. My friend has the 400 and it's an 02 motor and my 340 is also an 02.