Does my 1998 5.2 have throttle body injection or single port injection? I want to put on a spacer and was wondering since some say a spacer does no good with single port injection. I had a spacer on my 1997 ZR2 4.3 that I could tell was giving me the $50 improvement I paid for.

 

I think you meen siquential port injection. we have that. I could also be multi port injection. Throttle body injection stoped around late 80s. The throttlle bodys spacers dont work on our truck. Use that money for high per. coil wires and plugs. it will improve hp as well as gas mileage.

 

yup, agreed... welcome to DF.