looses power

[Chris Hill]

Originally Posted by Frank Castros

GT/HA '66 Plymouth Belvedere, 426 Street Wedge, 3,675 lbs.
2.77 first gear ratio, 4.89 rear gear, shifting @ 6,500 rpm, 7,500 rpm at the finish line.
1.44 60', 4.35 @ 330, 10.80 @ 122.00 mph.

Problem is it runs out of steam at the top of the first gear.

Running an Edelbrock Super Victor with a Carter AFB 585 cfm, fresh Product Engineering 9500 Fuel Pump and 4 port regulator.

What do you guys think?

Everything seems ok. 1-2 shift sooner.

Don't go to 4.56 and 2.45 low gear. It won't leave starting line at all.

[HTMtrSprt]

I would agree that a large runner and plenum wouldn't cause a lack of power. Sprint cup restrictor plate motors (similar to the big motor, small carb setup) actually make power using the biggest runner size they can cut into the manifold casting. More likely a fuel delivery issue if it only occurs in low gear as that is when there is the highest 'G' loading on the fuel system.