d1570ba .... this is the only number on the injectors that is the same on all 8 of them, I bought them new and the were supposed to be bosche injectors but memory fails me if I orded them for my 305 or a 350 car I had, now I understand if they are really 350 injectors it will be a little to much full for my 305 which is bone stock, but can fuel pressure compensate for the extra fuel, here is another injector number these were off a 87 trans am 5235047 & another set 5235302

thanks

 

Rating for the following numbers:
5235047 1985 305 19#
5235302 1987/88 350 22# current GM injector P/n 17111961

 

I'm pretty sure #22 injectors will do fine in a stock 305cid..

I'd toss an AFPR in along with them for a gain u can really feel

-LJ