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Fbo ecu rev limiter HRR688 is described as “algorithm positive rev limiter”. What type is that? I know what a “hard” or “soft” rev limiter is, not sure what positive rev limiter means. Is it similar to a msd soft rev limiter type?

71 Duster with 340. Electronic mopar ignition single ballast resistor. Engine tries to start but can't. More like sputters. Only getting 8 volts at + coil terminal when cranking/start. I found that I can get 12 volts to the + coil when I disconnect the wire connected to the negative coil...

Replacing the brake line on my 71 a body 8 3/4 rear end passenger side. Block to wheel cylinder. It broke. The one that came off it looks to be about 42inches. The only pre bent one I can find is about $30 from right stuff or I was just going to bend one my self for $9. I can only find a non...

I will be breaking in a new cam (292\ .501) so I am trying to remove the inner valve spring per recommendation. So I bought the air hose that screws into the spark plug hole, and the proform rocker shaft mounted valve spring compressor for small block mopars. My air compressor pumps the cylinder...

I have 71 Duster with stock A body 8.75 rear end with small bolt pattern and springs in stock location. I am looking at getting 15x8 rallye wheels form wheel vintiques and putting 275/60r15 on them. The wheels only come in 4.625 back spacing though. They do custom back spacing at a price though...

Anyone running the Comp solid Magnum cam 296 duration .525 lift? Wondering how it does on the street and low end torque feel. I have to replace my cam (long story) I have been running the MP purple Hydraulic cam shaft 292 .508 I have really liked it, good on street, sounds good, have run 12.9 at...

I was going to replace my cam bearings since I will be replacing my cam and the engine is out. summit has "direct replacement" bearings and "high performance" bearings. I am going mostly for street performance with a little strip use once or twice a year. It is a 340, cam 292 .508, 10.7...

I have a 71 Duster I just dropped the 340 LA engine back into. Went to prime the oil pump/engine with the hex head tool and drill. After 4 to 5 minutes of priming the oil gauge only read about 5 -10 psi. I took the oil gauge off and blew compressed air into it and the gauge moved to about 20-25...

71 Duster with a 340. The problem-no power to anything, no dome light, no headlights, no wipers, no ignition power. The car had not run for 12 years. I just rebuild the engine and put it back in. Went to start it up and had no power to anything. One day I go out and there was power to...

I tested my Accel Super stock coil 8140C. Primary coil was 1.3ohm and Secondary coil was 6,800ohm. The spec sheet said primary should be 1.4ohm and secondary coil should be 9,200hm. I could not find online what range is acceptable. The secondary coil 6,800ohm seems very low to me but I am not...

Trying to start my 71 duster with a 340 after 12 years. just rebuilt the engine. Engine turns over but getting no spark. Using a light tester, there is power getting to the + & - side of the coil, but the tester does not light up on the 2 wires coming form the chrome ecu box to the disturber...

I am trying to replace the filter on my fuel sending unit, on my 71 Duster. When I took it out of the tank it didn't have a filter on it. It just had this weird looking think on the end (see picture). Not sure if this is part of the filter or if the filter attaches on to this? Or do I need to...