Usually if the car is light - say, under 2600~2800 lbs - then a PG works well, but usually with a BIG gear, like 5.13 or so. If the car is heavy, the it's most likely be quicker with a three speed.
1967 Falcon 4 door 351C-4V
1970 Mustang 351C-2V
http://raceabilene.com/kelly/hotrod
Owner built, owner abused.
