Join Date: Nov 2002
Location: Jacksonville, FL. USA
I recently had larger valves put into the heads on my 396 (2.19 In. 1.88 Ex.). I have been driving it for a couple weeks and decided to do a compression test.
Here are the results,
Several months ago I did a compression test and the numbers were in the 160/170 range. This was before the new valves.
I am concerned about the compression being too high. I am getting a bit of (spark knock) when I accelerate. I assume this is detonation. I am running 92 Octane Super but this does not seem to help.
How does #5 look compaired to the others? Is this something to worry about?
Team Camaro Gold #137
Team Chevelle 1856
69 Camaro SS396. Hugger Orange, Holley MPFI, TKO600 5spd, 12 Bolt 3.55.
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