Blueheeler

Here's my situation. I removed my old style alternator which had the 10DN plug & the external regulator & replaced it with a 1 or 3 wire self exciting alternation with a SI plug connection. To wire everything up I Attached the yellow wire removed from the old alternator to terminal 1 & the blue wire to terminal 2. I also pulled the plug from the voltage regulator and ran jumper wires from terminal 2 to 4 and terminal F to 3. Car seems to be charging correctly but now my radio volume pulsates or go's up and down. Car has a mild cam & at idle it almost seems as if the radio volume goes up and down with the lope of the engine. Anyone got any thoughts on what might be wrong? THANKS IN ADVANCE for your time & thoughts.

I'm impressed with the double snorkel you added. That's one of the reasons I'm considering changing carbs. The double snorkel air cleaner I have won't fit on my Edelbrock since I added an electric choke.

I'm currently not happy with my Edelbrock carb. Rather the rebuild it I'm considering going back to Rochester or Carter 4BB. I still have the factory intake on the car with original throttle & kick down linkage. The choke coil assembly on the intake has been trashed & I know I'd need to replace that. What else might I need please.

Scott, thought you might be on to something so I got a cheap flash drive. it did play for about 3 seconds which is 3 seconds longer than the expensive one would. Not sure if that should be a indicator to me of the problem or not. Next move is to check & double check grounds.

I have tried that, I've even gone from the USB being locked up to radio mode and the radio will play fine. There's something about the engine running that causes this. I got to thinking last night maybe it's a voltage drop or voltage increase messing things up so I think today I'll start the car, disconnect the positive post from battery & see if it'll play. The cars got or had a few other weird issues, it's almost to the point where I'm thinking of calling it "CHRISTINE". If you ever saw the movie you'd understand. If you haven't, you should check it out.

I have a 1970 Monte Carlo in which I installed a Custom Autosound USA 630 Radio. Besides being a radio, it also has a USB port. Wired the radio as per instructions. Radio works great. Problem comes when listening to a flash drive in the USB port. If I have the key turned to accessory position or turned forward in the ignition on position the flash drive will play music all day long. The instant you start the engine the flash drive locks up. This does not happen with the radio. I've even ran a power wire from the battery to the power supply for the radio & the flash drive still locks up the instant the engines started. Crazy I know. Autosounds No HELP. they won't even reply back. I thought for sure running 12 volts direct from battery would eliminate any potential feedback or voltage surge or voltage drop problem. You guys are some of the smartest & of course nobody knows these Montes better than club members so any thoughts? I will add that the car still uses the original alternator, voltage regulator set up.

Canuck that's some excellent information, THANK YOU. Looking at the horsepower ratings for 71 I can see a 95-horsepower difference depending on which way it's read. I'm guessing GM came up with a clever way to make it look like they were really being environmentally friendly by giving the engine a net horsepower rating that looked lower than customers had become familiar with seeing which was the gross horsepower number. And based on your experience I can only assume the horsepower was even worse by 74. THANKS FOR SHARING THE INFO!!!!!!!!!!!

I currently own a 1970 Monte Carlo 350ci 4bb. I believe it was factory rated 300hp. I previously owned a 1974 Monte Carlo 350ci. 4bb. factory rated 160hp. I understand the 74 ratings were with smog pump & other pollution items. Those were all removed. So the best I can tell both engines externally were the same. Both engines have same spark plugs, same gap, both have HEI distributors, both set 10 degrees BTDC timing. Here's what I don't understand, It seems to me that the 74 rated 140hp less had better take off power, more torque and would have probably been quicker in a 1/4 mile than the 70. Did all the pollution crap on the 74 reduce the horsepower 140hp. Are both engines internally the same? Am I expecting to much from my 70?

The rear of the hood on the driver's side sits just a tad high. Problem is I can't adjust it or lower it as it's hitting the wiper blade arm. Has anyone else experience this or know of an adjustment I'm overlooking?

Okay I'm sorry to say I'm still confused. Either I have a odd ball car or what people say there selling me is incorrect. Here's what I know. I've been told I have a early production 70 Monte due to the fact it has chrome trim below the headlights. If that's true or not or makes a difference I don't know. The hood hinge springs on my car have 25 coils. Everything I've purchased & received has 29. One of my springs weighs 1.8lbs. The ones I'm receiving weigh on average 1.1lbs. My spring has larger coils & will almost hold my hood up when fully lifted. If it was to stay up the slightest bump or even a sneeze will bring it down in a hurry. And God help you if your under the hood. To date I've ordered both the 384680 from Summitt & the 3848272 from a independent vendor. I just ordered another pair this time 3907626 which is not on the list above but comes up as a replacement during internet search. Wish me luck otherwise I may just go with a broomstick. BY THE WAY, THANKS FOR THOSE WHO GAVE ADVICE!!!!!!!!

Thanks Dennis. By the way I used to live in Eastgate, where cars like eggs are cheaper by the dozen. Not sure if you'll get that, depends on how old you are. Years ago Jeff Wyler used that saying in his advertisements.

So far I've ended up with two wrong sets of hood hinges. There smaller diameter & have more coils & don't come close to holding the hood up. I'm now looking at a pair from Original Parts Group. There part number #CH20357-PR. Has anyone gave these a try or know where I can find a set. PLEASE NOTE...GM3848272 will not work, there smaller diameter & lighter duty. Cars a 70 with 350CI.

Okay THANKS for verifying that.

I'm trying to determine the correct center cap for the rally wheels on a 1970 Monte Carlo 350CI.

Hey, I like that website, Thanks for the tip. While they have a lot of stuff I didn't find anything to fix my problem.