Compression Check On Engine Cradle
If you crank with no intake just be careful not to suck anything up into the engine. This is a fine way to get full compression. The throttle body on the intake restricts air and will reduce compression if not held open, possibly but rare. That example should explain what putting the intake on the head does- and why intakes affect power peaks and so forth. You are tailoring the behavior of air molecules when you place curves or barriers in their path, those patterns can be formed in frequencies are tied with engine performance.
You want to see balanced numbers, but the number itself in this case is sort of irreverent. If you have a dead cylinder thans 50psi under the others, than you know **** is bad.





