According to the TCI information, you don't have enough gear, and are not spinning enough RPM's to use that Group 4 converter.
If you aren't running class heads up, and want bracket style consistency, an 8" Opel style converter would be the choice, I think.
Quote:
4 Heavy Super Stock Cars, 8500 rpm, Low-Torque
Stall Veh. Weight Engine Cubes Gear
600-900 HP
5600-6100 3400-3700 SB 265-327 cid 5.38 to 6.50
Tire size Intake CFM RPM range
28" to 32" 750 to 1050 6500-8500
|
Jeesh, that didn't work very well......
http://www.tciauto.com/Products/Comp...p_conv_7in.asp