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Old 08-07-2016, 06:27 PM
Survivor 69/Z28 Survivor 69/Z28 is offline
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Join Date: Jan 2007
Location: Texas
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Default Re: L78 Hydrolic Roller

Wish I knew how to post a picture on here and could post the dyno sheet.
Sounds like I need to stick with my combo and just get a valve job and fix oil leaks. Unless someone has the magic recipe for more power from what I have.

I think finding an M21 would be a lot more costly then just changing to 3.55's. Mathematically 3.55's and an M20 are just like and M21 with 4.10's
The biggest drop off would be 4th gear of course.

I replaced the valve cover gaskets and they are all still wet with oil on threads.
What's strange is its every plug. Some are very slight and some have more.
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1970 Chevelle SS LS5 - 79k original miles, Tripple Black, build sheet
1969 Camaro SS/RS X22 - 548 with 5 spd, Hugger Orange, Houdstooth Interior
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