My car on the left (avatar) weighs a little over 3250lbs with a 377" motor, i run a PG with pro brake, but you also need more gear. I run 6.52 and 10.59@125MPH. The car is backhalfed and tubbed with a glass hood, other than than that the car is totalally stock, dash with all instruments, even still the ac controls, roll up glass, all the lights,etc.
But i do run 5.43 gears.
The PG is easier to turn, and lighter than a 350 turbo.
JMO
Zip.