> I should add that you can get some good info on this from www.diy-efi.org. Thanks for the link, didn't find what I was looking for, but with your hints I typed "GM 3800 injector flow" into google and got this page: http://carsoft.co.il/page3/Electronic%20Fuel%20Injector(EFI)%20Flow%20Data%2 0Table.htm Which gave me this spec! Bosch - Ford Part Number lbs/hr cc/min F78E 19.0 199.7 The lbs/hr isn't that useful to me, but the cc/min is perfect!! Thanks for the pointers. TTYL -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu