I current have a 91 RS 305 TBI. My mods include a GM fastchip, K&N, headers, y-pipe, flowmaster, and posi 3.42's. My problem is i'm a college student on a tight budget and i'm not sure what mod to do next. Cams seem to be exceptionally expensive to have put in, I'm not sure if i should get a TC if i don't have a cam, etc. I might just put a small shot on and be done w/ it, but i like having my power all the time, not at a switch, ya know. Intake, throttle body? Help...

 

i don't see ultimate mods listed, do you have them? that is free stuff and shoudln't be over looked.
you may wanna look around for an edelbrock intake if you can save like $130 up. you can do the swap your self in a few hours with hand tools.
a convertor is a good mod too. teh stock convertor is horrible.

later
tim

 

NJ Speeder,

What will the ultimate TBI mods do to gas milage??

 

Tim,

Two questions for ya. First, which stall speed should i go with. After that other posting, i was leaning towards getting the S-10 converter which stalls around 2200. But my car is my daily driver, so i wasn't sure if that would be overkill. And which of the intakes exactly do i want (part number, etc) thanks.

Donnie

 

Edelbrock Intake #3704 is a direct replacement......Shop around for it though.....

You also may want to consider the MSD ignition cap/wires etc...., not too much performence, but it does help out....

 

S10 converter is a good choice for a mild car and you won't have any streetability problems.

The edelbrock intake would also make a decent addition.

 

I agree with FLYNLOW92rs. Ignition is good for gas milage and will make your car run smoother. MSD dual connector coil will help you pull past 4,500 rpm as well, as that is where most stock coils tend to lose voltage output. It helped me out quite a bit, and for $40, it was probably the best performance for the money mod I've done. I didn't see an open element listed in you mods-which is also an inexpensive and easy mod.

 

I would suggest going with the march underdrive pulleys and go get a cut out at the same time. I did the two the same day and felt a pretty big power gain. Our underdrive pulley is like a big bowl, the comparrison of the march pulley and the stock one is huge. All in all do all the bolt on's first then go to the intake and came. Heads would be the next thing afer intake and cam. Just IMO. With my mods in my sig I was in the high 14's. Thats in the 1/4 not the 1/8. I pulle 9.7 in the 1/8