Thread: Starting & Tuning up 540BBC with Holley DP 750's and B&M 871 Blower

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Unless you know differently, I'd assume that the fuel in the car was an ethanol blend, and after sitting that long it's gone through phase separation and is nasty stuff. I would consider all parts of the fuel system suspect, with any rubber components likely eaten up. Suspect parts would be the fuel pump, fuel filter, fuel lines, and carbs. Any or all may be OK, but they may also be bad.

Oil sitting that long needs to be changed, too, IMO. If you decide not to rebuild the carbs I'd take a squeeze bottle full of good gasoline and pre-fill the float bowls rather than cranking to fill (assumes a mechanical fuel pump).

From your screen name it's a '68 Camaro? Post some pictures of it when you have time.