So how do i measure them with the springs on? Do i just measure the spring hight the old heads and see if they are the same as the 302s? I dont have any adjustments on the rockers. What would i do then if they are taller?
Rockers off, ruler across valve tips/retainers
Well now lets think here for a sec, i gotta ask you stuff i always assume is done and therefore miss the diagnosis.
I base the 1st response on you saying it only sucked air at the plug and didnt push your finger off..that would mean the valves are open .
Btw Did you needlessly pull the distributor out when changing the heads?
