SAAC Forum

I also have a 347 with AFR 185 heads with that T/A manifold. It currently has twin 390 carbs and a big comp roller cam and it is the best running small block I have ever had. It had 600''s and then 460's but would foul plugs. I don't claim to be an expert but for the last 6 years it has been flawless with no bogging and amazing performance. i followed the advice of Car Craft magazine article from about ten years ago that tested this manifold with various carbs and found the 390's worked the best. For an all out race car you might use larger carbs but for anything short of that smaller might work better. Never had it on a dyno but it has to be north of 400 hp.

One more closer

I fabricated it myself, not the best looking but I run the car in open track events and with any size tank it is a good Idea. There are some after market ones that used to be sold and one that bolts on top of a stock sized tank. You can use aluminum plate and drill and bolt it in yourself that is not too hard to do. Not sure if it is required by vintage racers but for anything else it is a good modifacation unless you have a fuel cell. I will post picture soon.

Here is more pics from the back and side, what was this used on? Maybe sold through a catalog. it has the AC stamp on the back and looks to be similar to R model except cable drive.

Thanks for the info, the tach I am referring to is for sale and I have only seen a picture of the front and i looks like an R model type with no redline and white tach needle with CS logo at the bottom. The owner says it is cable driven, I will have him send me more pictures.

I used to have a 66 289hp car that I put a 600 DP carb and it felt like  50 hp increase, of course it wasnt that much but felt great, a lot may depend on your engine but even though on a dyno you may show an increase with a large carb, for driving around I have found 600 or so carb on a stock type engine feels better especially a double pumper. gas mileage is a different story.

I have one mounted in the trunk just for looks and run off mechanical engine pump on my R-model replica.

The tach was made for competition use (more reliable?) and was made by a different company