The quarter mod should only increase your fuel pressure a little. Maybe 2-4 PSI. Most of the LO3/5s are low on pressure to begin with, so it should only help.ive done the caddy intake and im gonna be moving the charcoal canister soon i have to go get the bracket. Im going down to pull a part and getting the 350 from the police package once i get the money. my buddy said when he did the quarter mod on his car he lost alot of power. the electic fans will probably happen when i have the engine out and swapping it. if anyone knows anyone with a 9c1 cluster for a reasonble price let me know please. thanks alot for the advice. im new to the bbodies but im part of INC so alot of guys that can help.
I think he has the civvie 305 per his original post. This would be the norm for a non-9C1 TBI car for '91/'92. '93 350's could be had in non-9C1's via the LTZ package, albeit in a less powerful version.To upgrade your LO5 to the 9C1 spec, you only have to get the cam injectors, computer, and exhaust/install duals...then you need a modded trans crossmember, and a second muffler bracket for the driver's side. A second left bracket bolts to the right side like it was made for it.
All 305s are basically the same. 160 HP, 250 lb. ft. torque.i have the civilian model 305 caprice classic. i dont have the LTZ