Just as slow as before mods..

maybe because that's all it is? we don't know what cam it has in it, nor intake or carb.

3.70's aren't a particularly steep rear gear, especially considering we don't know the tire size or what transmission is might have.

what i'm saying is that there could be a lot of room or improvement, or not.
Ok here's what I got as per receipts:

1. Machine work for resurfacing heads and valve job, repaint engine
2. Carb - 500 cfm Edelbrock AVS2
3. Cam - Grind 260H RPM 1200-5200
4. Weiand intake
5. Rear End - Strange Traction Loc Dana 60 PRSL05 35 spline 3.73 gears
6. Tranny - Exner Performance A518/46RH with torque converter