I finally got around to doing a full leakdown test on my motor last night. I have been suspect of a few things since my car hasn't run the same at the track lately.
Here is what I found:
First, my compression tests:
#1-225, #2-210, #3-220, #4-225

Leakdown:
#1 - 5% -slight air from crankcase and intake
#2 - 12% - air from #1 spark plug hole, and intake
#3 - 5% - slight air from crankcase and intake
#4 - 8% - slight air from #3 spark plug hole, slight intake and crankcase

From what I understand, the air escaping from the crankcase is fairly normal. The air is escaping from the rings, but it isn't very much.
The air from the intake kinda worries me, but it isn't that much I guess, that may be a valve lash issue, not sure though.
#2 and #4, If the air is leaking from an adjacent cylinder, it usually means a headgasket. But, air is coming out of the intake as well. I am thinking it may be due to the intake valves being open on the #1 cylinder as #2 is being filled. The same goes for #4. I forgot to check the exhaust on #4 though.

So, what do you guys think? I have narrowed it down to 2 things, either a headgasket (which was suspect since it was installed and was somewhat misshaped) or valves. If it is valves, what part of them? Any input helps, thanks..

 

I was thinking about it, it sounds more like intake valves since the #1 cylinder doesn't leak into #2 when its compressed. Does anyone know what it would be though? Bent? Something else?

 

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