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Steve, Suggest after cleaning or those nasty spark plugs that you simply unplug both oxygen sensors to keep you in open loop. EEC1V can and will foul o2 sensors with no codes stored. Usually a giveaway is that the system goes into closed loop way too fast. When I worked at the dealership, I had...

Tim is a great guy, easy to talk to. Fair prices and great workmanship, Barnett high performance was on time and on budget. Will see them first for my next engine project. Boilermaster

Sorry that I missed convertible, which has different motor mount perches than other mustangs, that will enter into the equation as well. What do you have on the car now ?. Oval could work, hopefully someone will chime in that has one. Iam not a great fan of dropped base air cleaners, IMHO,, they...

iceicebaby, I have a 351C4v with an Edelbrock Torker and 1/4'' spacer on my 71 Mach with 3'' air cleaner, tight, very tight. My intake measures 4.9''front to 5.9'' at rear with a straightedge on the carb pad. You would then have to get the specs of your intake and start doing some math. also had...

73pony, Still thinking that you should swap calipers (and hoses) side to side to see if that will make the left side bind up. That will break the issue in half and you will at least know which direction to work. how old are the hard lines from the master cylinder forward ?. any chance of debris...

73pony, Wilwood part number of your kit and Wilwood master cylinder number would be extremely helpful. A few things come to mind here, what combination valve or proportioning valve ?. Is it possible you have the right front caliper plumbed to the port intended for the rear brakes ?. Also have...

When we look at the actual term (backfire) it means that the ignition is occurring somewhere else, other than in the combustion chamber. When we get a backfire thru the carb, this means that ignition is occurring while the intake valve is still open or the engines previous cycle on that cylinder...

griffbl, how fresh is the fuel in your car ?. fuel system is a likely culprit here, I would check fuel pressure and volume to the carb first, then float levels on the carb. You could post the list number of the carb and determine if you are getting a good accelerator pump shot from the carb...

Batwrangler, Please expand on this a little further. Stock or aftermarket ?, are you trying to ( dial in ) the camshaft you have ?. Comp. cams {and possibly other manufacturers} have what is called lift at TDC to determine cam timing orientation. All one has to know is if true TDC has been...

Iron heads, Basstrix

I am running 10.4 and 8.2 with my 408 cleveland, no whimpy gears and make sure you know how to dial in an ignition curve. I am doing this on 91 octane fuel, we have 93 octane with 6-8 % ethanol, my mustang does not like this and my shovelhead hates this fuel. Boilermaster

Mjlan, Did you do anything with your exhaust while the car was sitting ?. what about mouse/rat nests in the pipes ?. Also, the DS ignition should have 2 circuits in which the ignition should produce a spark, crank and run, have you verified both with the distritor you intend to use ?. With all...

Basstrix, Can't comment on the Pertroxix 600, but I have the model 510, which can be had for $217 and has much more features. rev limiter, multi-spark, will drive a shift light, 2 step, adjustable start retard, just too mention a few. I am running mine with a MSD distributor. Iam certain that it...

Dircronmach1, not a big deal to make them if you know someone at a parts store. you really only need to know your mach's bolt and spacer lenght. I found a set and only had to cut the spacer by like 1/4'' wish I could remember the part number or the application. The good part is they will cost...

BSC73, The 1972 shop manual calls for 1 pint of fuel in 20 seconds (thru the fuel filter on a warm running engine @500 rpm,s. Fuel pressure spec. is 5-7 psi under the same conditions. Not telling you how to test, but SAFETY FIRST. Boilermaster

Steve, Back when I worked on these things for a living, I made a test connector for MAP and a bunch of other EEC connectors, with it one could get relevant data from the sensor without connecting a breakout box or piercing the wiring to get a backprobe. One could then use a handheld vacuum pump...

Steve, When you were checking the ignition timing, did you have the ignition timing shunt removed or connected ?. Base timing should be checked with the shunt removed. If you are in the 12 degree range with the shunt connected and reading 12 degrees BTDC your timing will be severely retarded...

Thanks Chuck, Glad that I took the time today to gather these specifications for you. Nice to know one good turn will still warrant another. hope to get these bushings soon Joel

c9zx, 408C, closed chamber heads. 10.4 cr. Edelbrock torker single plane and Quick fuel Brawler w 4 corner idle mix adjust. Hydraulic roller .576/.588 224/[email protected] 110 Lsa. 15"hg @800 rpms and hot idle @ 13.5 afr. Base timing @14btdc. Will run a little more base timing when I can get a bushing...

Vintageman, Just as long as you are 100% sure you know the richness is coming from ONLY the main circuit. It would help if you would post the carb part number. Does your carb have a single power valve or does it have both primary and secondary power valves ?. I see in summits reviews, a few...