[john walker's workshop]

easy enough to install it in the car. you could have it running in an hour or two. a cold leakdown will just make you worry. i took a chance on a 2.7 recently, after the first guy in line for it did a leakdown test with his home made tester. after getting 80% in one hole, he passed. it supposedly was a good runner, and after doing the leakdown myself, and finding about the same results on that hole, i took a plastic hammer and bipped the rockers a few times, (with the tester attached), to blow out any crap between the valve and seat, and it went down to 10%. got lucky.