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Awful gas mileage 444-544

posted by  someone claiming to be tommyt544 on  Sun Aug 4 10:32 CST 2019 [RELATED]

Been having a really hard time tuning my car to get it not suck fuel like it was going out of style. I might get 120 miles out of the tank. I'm running very rich at a setting where I'm not hesitating out of 1st or 2nd gear. I've tried leaning the carbs off but never able to get a good compromise.

Here's my build:

1963 544
Rebuilt B18D with 0.040 pistons
K cam
stock 4-1 manifold and skinny exhaust
rebuilt HS6 dual carbs with ZH needles
new 8mm spark plug wires
new Pierburg fuel pump to replace the glass bowl
New coil
B20 ignition
240 distributor (all new points, condensor, rotor)

I suspect it's the K cam and that I'm not running an efficient setup for it. Can anyone give me some help? Thanks!





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