727 or Powerglide?

sgt. slaughter said
I am trying to decide what trans to put in my 72 Valiant. It has Super Stock springs under the frame rails, with sliders and ladder bars (typical Super Stocker setup) and mini tubs (10.5 in slicks). 8 3/4 w/4.56

I am building up a stroker smallblock with a blower.

I am thinking that a Powerglide might work better with the flat torque curve. The 727 is a lot heavier with more parasitic loss, but is a 3 speed.

Anyone have any experience with this combo, or any insight?

How much HP is the blown small block going to make? You need a fairly light vehicle, and quite a bit of power to use a powerglide. The main advantage with the powerglide would be the numerically lower first gear ratio. This helps the higher horsepower cars from spinning the tires off the starting line.

I'd use a 727 with good parts personally, unless you're making over 1000hp with 25 psi of boost off of the starting line.