Not sure if im posting this thread in the correct forum or not..but,i just purchased a set of 8 used ''red top'' 30lb injectors off ebay for my LT1 and they all look identical but upon checking that all the part numbers matched,i found i have (5) part # 0-280-150-945,..(2) part # 0-280-150-756, and (1) part # 0-280-150-911,ive checked all three part numbers and i get conflicting specs from various sites,can anybody tell me if these injectors are compatible or not??,

 

They should all be rated 30#/hr @ 39.5 psi

Do they physically look the same?

 

yeah,they all look identical,just the part numbers are different and so are the numbers on the other side of the injectors,just wanna make sure the all flow the same because i ran all the part numbers just to be safe and i kept getting different specs for each part number ranging from 28.55lb/hr to 32lb/hr but all the specs vary from site to site so i cant find a definate answer.