Had to get the tranny done "again" so I went for a little more.

Here's the #'s. (all at the wheels)
before cam: 340hp 380 torque
with cam and stock pulley (3.4): 380hp 408.8 torque @ 5.5 boost
(A/F 11.2)

with cam and 3.1 pulley: 408.9hp 448torque @ 7.6 boost
(A/F 11.7)

*New additions with cam include dynatech long tube headers, rebuilt tranny by Detroit Gearbox, Vigilante 2600 stall, hardened rods & springs, tune by Alternative Auto Performance. Special thanks to Ken @ Neighbourhood Auto & Performance for the engine clean/rebuild and for making it all happen.
Also, thanks Bill for getting back to me with a prompt answer to my question unlike someone else who claims to represent a blower company.

 

Nice numbers.

Is the only difference btwn the pulls with the new cam just the pulley size (3.4 to 3.1)? Did you have the long tubes on for all three pulls?

 

Great numbers! gt2-3 and a smaller pulley are next on my list of mods, just gotta buy a new FLT Level 7 trans and converter first.

 

The initial dyno are with togs (the other guys headers). With the cam they are Dynatechs with modified collectors.

 

What made a bigger "seat of the pants" difference, adding a smaller pulley or the cam? I ask because I am deciding between the two... but knowing me, will probably do both eventually.