time to upgrade fuel system
Here's the two items I found out:
https://ls1tech.com/forums/showpost....79&postcount=1
The bottom area has a table stating
40 = 64HP (8 injectors = 512 HP Safely [576 HP MAX])
https://ls1tech.com/forums/showpost....30&postcount=4
190 liters (50gal) = 301lbs of fuel which is capable of supporting 600 HP
255 litres (67gal) = 404lbs of fuel which is capable of supporting 800 HP
All of those calculations above are assuming a BSFC of .5 but a good tune can change the BSFC to lower so you can safely get mor HP out of the same items with a good tune.

