classic fast

[GN73]

How can i identify

what style an old fast unit is b2b or seq?
thanks in advance

 

[pacecarta]

check the data label on the back for unit model # and upgrades

bank to bank boxes
30-122310 buick DIS,
30-122010 buick DIS w/ wideband

sequential boxes
30-223300 DIS with IAC
30-223301 DIS with IAC, indvidual cyl correction, spark control
30-223310 DIS , IAC , wideband
30-223311 DIS , IAC , Individual cyl fuel and spark control, wideband

if its not on the list its for something else as the boxes are individually model #'d for EDIS, TFI , IPU, HEI , etc

also be aware not all boxes have FAST labels , earlier ones were labeled speed-pro

 

[GN73]

part# 3o-22310
serial 0218 206

 

[GN73]

batch# c firmware rev. gn2-04d

 

[GN73]

thank you very much