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This is my time slip from yesterday as a point of reference at Firebird in Idaho. 1973 D100 long bed with a 408. Indy LAX heads. Sniper EFI. 4.10 gears. 727. I wish I could go 1.8 sixty foots! Just can't get enough traction.

My 1975 Duster - best time 12.35 @ 111.85 at Firebird near Boise, ID (2700 foot elevation, about 95 degrees that day) Gutted but still all steel. Home fabricated angle iron bumper brackets with only outer skins 10 point mild steel cage and subframe connectors. One racing seat only 0.030...

I didn't think about that! I will have to use thicker head gaskets and lose some compression.

Thanks. I will check that out.

I have already purchased the SS springs. It is currently in primer with bodywork done. I will have to think about some fiberglass. Hood and bumpers? My plan had been to stick with the steel hood and use only the actual chrome part of the bumpers. I was going to fabricate some much lighter weight...

Thanks for responses. All very good info. I will need to look into a custom converter.

Where did you find C clip eliminators for an 8 1/4? I looked everywhere and couldn't find them. I run an 8 1/4 in my Scamp and would love to add them just to be safe.

The car does have subframe connectors installed (I forgot to mention that). I am planning on using Mopar SS springs and a pinion snubber. I have already purchased adjustable drag shocks. There are no sway bars. I have rebuilt the front end with aftermarket adjustable upper control arms. Still...

Sounds like the 904 is a better choice. I have a manual/automatic 904 in my 73 scamp. Have at least 100 mid 12 passes on it without problems. Maybe I should use a 28 X 10 or 28 X 10.5 tire just to be safe.

I knew I would forget something! Planning on 28 X 11.5 inch tires if they will fit without wheel well mods. I do have a 904 core that came with the car so maybe I should go with that instead.

I am currently building a 75 duster for bracket racing at Firebird raceway in Idaho (2700 foot elevation) - will not be street legal. Gutted with a single racing seat. 10 point mild steel cage already installed. Approx 3000 pound race weight? Hoping to run at least well into the 11s with this...

The first three are my Scamp. The rest are a few of the other cars on the Mopar club team.

I think I need to work on my nitrous/fuel mixture. No bottle heater with a high temp today of 50 degrees. Fuel pressure 8 psi. My Edelbrock nitrous manual says jet sizes based on 5.5 psi. Had about 6.5 last year when I ran the 12.76 on street tires. There is a test and tune tomorrow. I plan to...

I will take some pics of the action. There are some really nice mopars out there. I am hoping to run a faster this year. Best last year was 12.76 at 112mph with street tires (just idleing off the line) and the 100hp nitrous shot.

The first club race at Firebird (Boise, Idaho) is today. I race with the local Mopar club. I can't wait to try my new setup. Hopefully my new drag radials will help me have a more consistant launch. I plan to use a 100hp nitrous shot this year. Should be fun and the weather is supposed to be...