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Looking for feedback...... Saw 2 different versions...... Version 1 is for installing 1 5-1/4" speaker in a location similar to the CSII. It says you can modify the panel to accept a 6-1/2" speaker. No cutting of your door required. Version 2 is similar to version 1 except you can install 2...

My new Summit Racing has a triple pass radiator in it in 4 different widths for GM vehicles. My 1st experience with a two-pass radiator is on a friends 540 CI BBC down in Houston, TX. It is a high dollar Ron Davis radiator that is supposed to be like NASCAR uses? Anyway.... 100 deg day...

My 160k mile GN is mighty soft in the front..... front suspension is all stock...... I think the first $$ I need to spend is on a new set of stock replacement coil springs....... but am curious what you guys recommend? I am currently on a tight budget... so small steps for me. I have no...

First, this is a long post..... so read on if interested. My goal here is to present in-car flow tests between these two pumps. Fuel lines are stock. Pump has been hot-wired. Flow tests were done by unhooking the return line down by the frame near drivers side motor mount and aiming end of the...

I purchased 2 of these several years ago and intended to hook them up to log FP and oil pressure. Apparently, I only bought the sensor. I need a harness. They appear to be a Metri-pack 3 pin female harness similar (or even the same) to the metri-pack TPS connector (possibly from LS1 cars) that...

On a XFI... you can select and drag across a portion of the datalog and it will give you an average reading for the range you had highlighted. If used correctly.... you can get a good idea of how much correction the chip/ECU was doing for that portion of the datalog..... Is there a way to do...

I have a 3" TH SS DP for an internal gate. I bought the DP used from Dusty Bradford many years ago that came off one of his customers cars I think..... I currently am running stock headers. It fits fine. I understand there is a version of the TH downpipe that will fit with ATR headers...

I installed this puck on my 3" SS DP in anticipation of installing my new used turbo that had the WG hole ported out larger than the stock puck would cover. I left the stock sleeve in there and put the new puck on it and shaft and had the outer arm tig welded on there. Well.... I checked...

I have been of the opinion to not consider aftermarket headers until you had a 9 sec capable car. I have seen folks trap 140 with the stockers.... so why bother? I had someone (who I respect alot for his knowledge) suggest that the crossover pipe is the weak link with the stock headers.... and...

I want to experiment around with some LED lights that activate under boost..... I am told the pressure switch on digital dash cars will work. It is the switch over on the pass fender that the vacuum line goes into right by the bank of relays. Anybody got one they want to sell reasonable? Thanks.

Your standard garden variety "hobbs" switch is a set of contacts that (in some cases) can be adjusted when the switch "switches". Some are "N.O." or normally open while some are "N.C." or normally closed. Seems simple enough even to my simple mind. The setpoints can be adjustable. This is simple...

I know some put tiny zip ties on their vacuum lines. I have heard put hairspray on them before connecting the vacuum line. What other tricks are out there? I need to do something, but really don't like the little zip ties.

I got a buddy that has a Ron Davis 2-pass radiator in a roller cammed 540 pro-street bottom 10 sec na camaro ...... this thing won't overheat on a 100 deg day in stopped traffic in downtown Houston. The radiator basically is two radiators one on top of the other with special end tanks... it...

I tried about a year ago when I was putting in my motor one time to install my new dual fan setup. I think mine is the same as the "Ramchargers" dual fan setup. I have the nice wiring setup with relays and all. It didn't appear it would easily fit. I am running a f-body radiator and a RJC FMIC...

There is not too many posts on this recently and I thought I would share what I learned. Feel free to correct me if I am wrong and add to the thread for others to find when they are in need. This is for the shifter cable that goes inbetween the floor shifter and the 2004R tranny on an '87 GN...

I have been reading about how to wire up the older 10SI and 12SI GM alternators for our old camp tractor. There is a ton of info on the net and I ran across that most of the newer than 30 years old alternators (GM ones at least) have a "voltage sensing" lead. Basically you hook this up to a...

My '87 GN has 160k on the clock and has spent a large portion of 139k miles..... parked outside I believe. My windows don't seal for crap anymore..... My car is not a cream puff.... it is a driver. I anticipate it driving me to work once a week or so..... 70 miles round trip. I need new...

The more stock looking the better for me. I am thinking about trying to build an alky tank hidden somewhere in the engine compartment. I was thinking under the battery tray or in the fender well. I would like to put the stock radiator catch tank back where it goes..... Any ideas. I don't want to...

Just mounted up some 28-11.5-16 MT ET Streets on 2 GTA fronts to put on the rear of my GN. I was wondering if I was going to need a spacer or not or longer studs? When I got my rims they had 255/50 BFG drag radials and the rubbed the frame rail slightly. I am anticipating this ET Street will...

Alright guys, there is no one place that I've found a "how-to" to buy the necessary parts to step up to 30 spline axles and a stock style Eaton Posi unit. I need input from those who know. We can use this thread from now on..... so guys that know.... contribute please.... Fact: GM has...