Re:AVgas in 2 litre?

["Hyndes, Keith" <KHYNDES@xxxxxxxxxx>]

	Unless the car has very high comp pistons, it indicates something
rather wrong. 2 litre is only 9.0:1 comp (sure it is 2 litre in a 76 GT?).
Should run fine on leaded (but avoid S***l), or even ULP. Check:
- -Cam timing.
- -Ignition timing, rev up and down to ensure it is not erratic, and that it
doesn't advance too quickly.
- -Potatoes growing on piston crowns?
	Backfiring can have a number of causes, on of which is  cracked
distributor cap. I hazaard aguess that erratic timing could cause
backfiring. Or something (coil, condensor, etc) breaking down under load.

Keith

Mike wrote:

>From: Michal Wawruszak <alfadigest@domain.elided>
>Subject: AVgas in 2 litre?

>Hello all,

>Having problems getting the Alfa running correctly, I have turned to
>AVgas to reduce the pinging. The car backfires sometimes while at
>other times it pings. I was under the impression that these were two
>events that couldn't happen together..? I thought backfiring was the
>cause of too retarded timing and pinging of too advanced timing..?
 
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