http://67-72chevytrucks.com/vboard/s...d.php?t=310179
If interested, here's my thread from the summer using a 355/Wieand 144 w/ 9:1, 93 octane, and NOS/104 (?) additive. Running through an M21 4 spd to a 3:73 Posi. Producing @500HP+ and assisted by Burkart Automotive (NHRA driver) in the tuning. I don't go above 5 on the boost. Too much money and time to blow it all away. Maybe a little scared too!
Still runs tall but have a small leak from the timing cover. The thread ended re the guage that I bought from Summit. It was repaced for free.
Good Luck