[4zpeed]

Originally Posted by JPN_GP

I'm sure there's solutions you guys have to work around the problem, perhaps thicker head gaskets
or playing with the cam timing to lower the dynamic ratio?

If you have access to 92 it may be ok but similar to your Skylark under heavy loads it may ping, never a good thing.

Not sure the kinda terrain you reside in but It's a bit heavier, elevation and hilly country will obviously also play a role.

You could knock a few degrees of timing out, it kills performance but much better to detune rather than let it ping.

There are also a few other things if your going to just drive it a while, today's fuel likes to eat the older rubber products.

Introduce yourself in the street section to get more recommendations, post some pics too they love that stuff.


Once again, Welcome!
Frank