ok i have replaced my lb9 with a l98 recently...so i wanna put a HSR on it...but is there any thing that i have to change .... ( i know fuel lines) and adjustable feul pressure Reg...should i change my fuel pump...i have the remote coil dist...is there anything else i am missing? thx

it is a 89(engine also from 89)
3.73s
headers

 

nobody has anything to say?

 

The part information says you need a 58mm or LT1 TB.

 

is the motor modded at all? fuel pump only if your stock pump is failing or is very old. new walbro 255 is a nice unit for up to 500hp or so.

Other than that, you wont have to change anything other than what you have mentioned. stock L98 TB works just fine but may need clearancing onthe brackets to clear the fuel rail

 

wich brackets.. please explain thank you

 

the throttle cable bracket. the big C shaped bracket on the throttle body where the gas pedal hooks to. you probly will need to cut off some of the end of that bracket to clear the fuel rail.

 

oh man...youve been great help thx bro

 

some aftermarket TB's wont have that problem. Also there are two different linkages for stock thirdgens, and i know the 89 up one does hit the fuel rail fittings that holley supplies if you install the fuel rail kit like holley recommends. Old style i have no idea.

My holley 58mm clears great tho