whiipple

I am looking to see if anyone has a 3.375" Pulley for a 2.3 Whipple they are willing to part with. I had got a 3.375 recently from a person with a 2.9 Whipple, but it appeared that the offset was different and sat too far back on the snout and did not line up with the idlers. That being said, I...

I have a 1999 L. Running a Whipple W210AX at boost of 20 and above. Not a street truck. W/ full built short block. Which would be the best way to go. (Not money wise, just highest potential HP) 1- change to Trick Flow heads with stage 3 porting? 2- change to Navigator 4 valve heads and have...