94 302 issues

[tneibling]

For the past year or so my 94 F150 (in sig) has somehow been managing to push antifreeze out on top of the reservoir. Also, I have to chunk a wheel if I park it on a hill because it will ever so slowly creep down the hill in any gear even first. I've noticed that it doesn't take alot of effort to turn the crank pulley by hand. It seems to me like it's losing compression somewhere possibly head gaskets since it's pressurizing the coolant system.
It's got right at 167k miles and has never been rebuilt or had any major problems.

Wat do u guys think about it? What should I do? Fix it or run it till it drops then worry about it?

[tneibling]

oh btw it uses about a quart up to about a quart and a half of oil between changes at 3000mi depending on how hard it gets run

[bet on black]

get one of those coolant tester kits to test for hydrocarbons in the coolant. that would point to head gasket. i would probably rebuilt that whole motor with that many miles on it