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I'm building a 99% street nitrous motor. I'd like to build the engine to handle a 250-300hp nitrous shot. I'm pretty settled on some Icon 2618 forged pistons, but what about the rings? The Icons use 1/16", 1/16", 3/16" rings. I've previously run 125-150hp nitrous shot, but this is a new...

This is a repost - I’m still looking. I tried to build my own diode, but I failed twice. I'm looking for a headlight buzzer diode for a 70 Road Runner rally dash (if that matters). I believe it looks like a "T" electrical plug and two short pieces of wire that dead end into each other. Thanks...

I’ve got a 70 Road Runner, 440, 4-speed, power steering, mini-starter, Lakewood bell-housing, mild cam, highway cruiser. I purchased some Edelbrock E-Street heads with angled plugs. I’d like to swap over to these aluminum angle-plug heads doing just a head swap in the car. It looks like my...

It has been many years & I don’t have an assistant. I seem to have a “no spark” situation and In trying to fix it. 1. Emergency brake on 2. Car in neutral 3. Key on 4. Short large “battery +” and “starter main wire” with a screwdriver (or push button) 5. What about the yellow wire coming from...

I’m reassembling my passenger door after many years. The thin rod that connects the key cylinder to the lock mechanism cannot attach. The larger/flat rod that connects door handle push button to the lock mechanism is in the way. I can’t unlock the passenger door with the key. I’m not sure it...

I have a pair of 70 B-body bucket seat cores for sale. They came from a 1970 Road Runner, but are the correct frames for Dodge’s also. Missing hinge covers (except I have the passenger cover with the button) and the “stops” (look like fender washers) Located near St Louis, MO. Overall they look...

I’m picking up my car after getting a new convertible top installed. I see big gaps in the corners. Is this normal? If not, how do I fix this?

Does someone have a picture or definitive dimensions of the hood stripes on a 1970 Road Runner? I can't find my "before" pictures and I'm seeing two different sets of dimension online. THANKS FOR THE HELP!

anyone have trouble with Year One front bucket seat covers not fitting? My upholstery shop says the seat bottoms don’t fit. I will be looking at it tomorrow. OER seat frames (70-74 Challenger) Mopar Plus seat foams Year One seat covers

70 Road Runner rally dash car. All of a sudden, the turn signals including outside bulbs, dash indicators and hood turn signals stop working. At the same time, all the dash gauges go dead. A few minutes later, everything works….then doesn’t again. I’ve obviously got a loose wire or ground. Where...

Where can I find a set of interior “skins” for rear quarter interior panels on a 70 Road Runner convertible with bucket seat interior? The upholstery shop ruined the PUI (Year One) skins I asked them to install. Upholstery shop says 4 month back order

Do 70 Plymouth B-body convertibles come with a trunk divider & jute like hardtops? THANKS!

Edit: I’m looking for the seat BACK (frame) for a 70 Plymouth Roadrunner convertible (narrower rear seat). I’m sure 68-70 b-body Dodge/Plymouth will fit & “maybe” a 66-67 rear seat frame too??? What do you have?

I’m looking for a 70-72 air grabber/ramcharger hood trap door actuator. I might try to modify a hideaway headlight motor instead if I can’t find an air grabber one. Thanks!

A shop worked on my car and the large crank bolt at the harmonic balancer fell out! The bolt is stripped. The shop said they ran a tap in the hole (but re-used the stripped bolt?) Anyway, the shop is talking about a VERY expensive “key-cert” (sp?) insert. I want to try a new bolt first. I’m...

I’ve got a 70 Road Runner OEM power front disk car. I’ve already switched to ‘74’ish A-body disc front spindles & ‘73 1-piece rotors. I’d like to do the “Cordoba swap” on a budget and switch to 11.75” rotors (I have 15” factory steel wheels). What cars/years should I find salvage yard caliper...

I’m trying to restore a 70 6-way bucket seat frame. I’ve watched the online videos, but the 6-way seat tracks are different from the standard bucket seat tracks in the videos. I can tell my little “ball bearing roller cages” are messed up because the tracks have some side-to-side play. How do I...

I’ve fought vapor lock for years. I want to add a “cool can” for the fuel line. Any recommendations? Anyone have one they’d like to sell? THANKS!

When I bought my Road Runner many years ago, it had a light similar to this one under the hood, not connected to anything. That light is long gone. Now, I have this similar light socket. Is an under-hood light an option in a 70 Road Runner? Where does it get installed on an air grabber hood? How...

I’ve got a ‘70 6-way bucket seat frame that is bent & I need to straighten. It looks like I need to remove 3 of the rivets, straighten 2 pieces and replace the rivets. Where can we buy these? THANKS!