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Carb and manifolds non spreadbore...
451 B engine with 440 crank 10.5 c.r., Edelbrock performer heads, Mr six pack cam, 750 cfm edelbrock carb.
2500 stall 3.23 rear. 26 inches tires.
Car Dodge Charger 67 weight 4000 lbs.
Actually with the M1 dual plane best ET 13.37 best mph 106.034
Do you think I can have gain with Weiand.




Nice. Very very nice. Your 60 ft must be 2.1 ish. I believe that the Weiand would add power. All of the evidance that I have supports it, but I don't have my own data, so it's just another opinion.

Have you done anything to the M1? I also believe that you could get one or two more mph out of it if it is currently untouched.

Be sure to collect atmospheric data each time you are at the track, as you keep tweaking stuff, it will become difficult to determine with certainty if it was from the changes or not.