#29

02-07-2018, 02:03 PM

wbnapier

Chief Ponti-yacker

Join Date: Sep 2017

Location: Encinitas, CA

Posts: 592

With 100 octane, at WOT, I hear a crackling sound, which I assume is pinging. I don't know the details of my engine, other than block, heads, and mild build circa 1991.

Quote:

Originally Posted by tom s

Your lucky you can get by with the 100,you have to be way over 11-1 if the block has been decked and any over bore.Tom

__________________
1965 Pontiac GTO
455/469 w/ #48 Heads, '65 Tri-Power
9.25:1 CR
Stump Puller Cam
Muncie M22W 1st-2.56 2nd-1.75 3rd-1.37 4th-1.00
3.55 Rear Differential
Front: 225/60R15 Height: 25.6"
Rear: 275/60R15 Height: 28"

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