Originally Posted by boggin-machine
well since your already going to have the headers and intake off just pull a few more bolts and do it right.
By doing it right you mean wasting time and money,along with lifting those heavy heads out of the truck?
Instead of using air you can also use a lenght of soft rope,feed it in through the plug hole and bring that piston to tdc.The rope will squish between the piston and valves,holding them in place.
This takes a little longer then air,but you dont need to worry about losing airpressure when your buddy walks in the shop and unhooks your air hose to fill his tire.