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In the process of trouble shooting reasons why my hydroboost brake equipped GN will only hold about 4# of boost before the rear tires start spinning. Front brakes hold. This happens about 2750 RPM, and I supposedly have a 3500 rpm stall speed 10" lock-up converter. Is this a problem.

Installed XFI back in January and got the idle and basic parameters set up with Cal. Since then I have replaced the Walbro 255 fuel pump with an Aeromotive 340. I ran a bigger return line and have the fuel pressure set, at idle, the same as it was with the 255. I have driven it around a bit...

Anybody ever put one of these in? There are two ground wires coming out of the fuel pump connector. One has a female spade terminal on it and the other has a male plastic connector on it. Wondering where these connect? Thanks.

Brake pedal with bracket, for vacuum brake conversion out of 85 cutlass. PayPal $40

2 1/16" electric fuel pressure gauge with sender. Paypal. $150

2 1/16th" electric gauges with senders and gauge pod that sits in console under the radio. $120 PayPal.

Thanks to Cal and Holly Hartlline of Hartline performance for getting me hooked up with a XFI package. Cal was on the phone with me for a while during the first start up and everything went very smoothly. He explained everything very well and made sure I understood what I was doing. His initial...

Looking at the adaptor harness that is supposed to go between the pressure sensors and the unused EGR plug. First of all, I'm guessing the EGR plug in question is the one the driver side, close to the coil pack wiring. This plug is female and has four wires and one slot on the bottom of the...

MAF translator and Z06 MAP adaptor used for two seasons-$130. SOLD 85mm Z06 MAF sensor used two seasons-$90. SOLD Would like to sell translator and MAF together. $200 + shipping for Translator and MAF together. SOLD Scanmaster 2.1-$150. SOLD All plus shipping. Pay with PayPal.

One screen removed. Two stickers on the bottom. Worked fine when removed for xfi. $75+ shipping.

All original parts and instructions included. Up pipe was drilled for a dual nozzle alky system. Will need to be repaired or replaced if not using alky injection. $400 shipped.

Ta49 turbo-$450 including shipping Turbo was used for 2 Summers, probably 1000 miles. Includes HD wastegate.

Ta49 turbo-$450 including shipping Injectors are sold. Turbo was used for 2 Summers, probably 1000 miles. Includes HD wastegate.

All the parts have around 2000 miles on them. They were on the car for two summer seasons. Sat in the garage through the winters. Pictures available on request. I also have 2 turbo tweak chips for the combo I'll throw in if someone wants them. One chip is for 93 octane and alky, the other is or...

I have a RJC boost controller from my old set up. Is it a good idea to use it with an external wastegate? If so, how do you control the boost? With the RJC valve or the external gate controller?

All of a sudden my Autometer FP gauge is pegged at 100psi. One day it was fine, reading 40psi ish, the next day pegged. Any ideas?

Just started my new motor (from Cotton's) for the first time tonight. Started up, ran fine, but my radiator fan is not kicking on. I have the dual fan set up with the manual on switch from Caspers. My AC has been deleted so all of the plugs are disconnected from the AC system. I'm getting...

Well, it seems I'm out $3200 dollars. I recieved my rebuilt short block back in Dec. 05. As I opened the crate I found a broken rod bolt. I was told by Grooms that they would send me a new bolt. At this point I should have sent the motor back, but instead I trusted that I was dealing with...

Well, sad story, my 1500 mile Groom's stage 3 motor is junk. The last two times out I noticed the warm oil pressure was down from its usual 50psi level to about 30 when cruising. Oil pressure was fine at cold start-up. Never made any noise as far as I could hear. I decided to drop the oil...

How much oil should be in the motor with a RJC girdle and remote oiler. I've been putting about 6+ quarts in to the point where the level is between the quart low mark and the full mark on the dipstick. The oil pump has a spacer on it to lower it into the pan further, so I'm wondering if I am...