Hello all. A quick update..... Finally got a chance to install a 650 dp holley style from pro-form onto my son's Monte Carlo. He's been working on his GTO convertible.
Removed the 750 dp and installed the pro-form 650dp. Have to say, looks like a good piece. Right out of the box it's adjustments we're about spot on. Impressive!
He road tested the Monte and came back all smiles! My brother and I told him he would be with the 650. Not that the 750 wasn't fun. It was just lacking in the lower end and throttle response.
I would recommend the pro-form 650dp!
Have a video of the road test but won't upload. 😡
Hmmm. Good question. I know the 70s and 71s do. Do you have a black box bolted to the radiator core support on the driver's side, under the charcoal canister with wires going to it ?
Hi Doug.
IDK if you are aware or not but the 68-72 gm A-body front suspension is exactly the same as the Monte Carlo.
So a Chevelle, el camino, Malibu, gto, LeMans, tempest, skylark, GS, cutlass, 442 etc front end or tubular arms will interchange.
The difference between the Chevelle and the Monte Carlo inner fenders is that the Chevelles are metal and plastic for the Monte Carlo.
Some say a few holes are a little off. My steel inner fenderwells bolted directly into my 70 Monte Carlo and made the front end stiffer.
Mike.
That is a brake residual valve. For the Montes, only the 70 had it.
If I remember correctly, it slows the brake fluid pressure as to not lock up the rear wheels during braking.
Maybe if you swap out the proportioning valve from the 70 style to 71 style, you can remove the 70 valve under the master. I would check the wheel cylinder and master cylinder bore diameters before I swap it out.
They are known as "phantom fits". Not necessarily listed for a specific vehicle but fit.
I don't know the part numbers only the vehicles to look for. Sorry.
You can also use a g-body quick ratio box. Monte Carlo SS, grand national, 442, hurst olds. Also certain year jeep grand cherokee.
We did this swap on my son's 69 GTO convertible. We had a Monte Carlo SS box "in stock"
Just a few other options.
Crummy aftermarket lid. Actually they are very good, for fit and finish.
For some reason all the Montes we have had, the trunk lid has a solid thud as compared to the Chevelle's we and friends have had.
That being said, MAYBE the Monte Carlo had a little more seam sealer like stuff added to the inside of the trunk lid, between the inner and outer skins. Before or during assembly. That's a big maybe.