Ok...just checked valve clearances on my 88 n/a tonight. They were almost all out quite a bit. The car runs very well, but the top end was noisy and ticking quite a bit. All but a couple on the intake side had at least .5mm too much clearance. Almost all the exhaust were at least .5 too tight. This is my first go at this does this seem typical for a well used engine? The prev owner did a HG 20-30k ago but I dont know what he did to the head. I've been using JSeaman's guide , its excellent!