New - Lots of Questions. Help me understand S&SS

[1320racer]

There you go, so in addition to the OP?s car not being legal for stock eliminator, the engine doesn’t have the best/right heads and as for super stock, nothing about his car/combo is right for building a competitive super stocker, no mind the need for “big money” to attempt to do it.

[LemonWedge]

Originally Posted by Paul Precht

The 915 small valve is a better head than the 516 for stock, in SS the Stg5 head is probably the best option.The 60s 383 AFB which is the same as the 426 Street Wedge can work in Stock but it's a bit too small for any real power in SS. I have tested 2 of them on my flow bench and they flowed 566 and 582, I'm guessing their original rating was 575, the 582 one with a large 65 Monaco air cleaner base flowed 598 CFM. The 440 would need a full cage in SS as a GTX or in GT. If you don't have a cage the 70-71 383 would be best for GT as it can fit GT/LA which is not typically a very populated class. The AVS can flow close to 650 with a good base and the 383 Holleys that I checked were 724 and 746 without putting a base on them, both have the same HP rating in SS with GT being a bit higher. None of these will go .8 under without great heads, big money, Pro trans etc. The 70 383 will go under the index in GT with good heads, intake and ideal cam.

Good info. The car is legal to 10.0. It is minitubbed and narrowed; and I?m not changing that, so SS is really the only option.

[LemonWedge]

So the prevailing opinion here seems to be just as I felt when I looked at the outline for a ‘67 383.... carb too small to make real power. Somewhat reassuring.

What about a 71 400 combo? You get around 415 available cubes, 452 heads, and maybe most importantly, a big 850 Thermoquad. Not sure how this carburetor is viewed as a race option, but at least its big enough to not be the cork in the combo.
The downside would appear to be compression; Down around 9:1. Does an engine with that little squeeze respond to modifications very well?

Also, I was watching one of Bobby Fazios videos. He was talking with a guy that said he was running The Low Deck 440 combo. I went back and listened to it 3 times to make sure I heard him correctly. Anybody have any idea what he was talking about??

[Paul Precht]

Originally Posted by LemonWedge

So the prevailing opinion here seems to be just as I felt when I looked at the outline for a ?67 383.... carb too small to make real power. Somewhat reassuring.

What about a 71 400 combo? You get around 415 available cubes, 452 heads, and maybe most importantly, a big 850 Thermoquad. Not sure how this carburetor is viewed as a race option, but at least its big enough to not be the cork in the combo.
The downside would appear to be compression; Down around 9:1. Does an engine with that little squeeze respond to modifications very well?

Also, I was watching one of Bobby Fazios videos. He was talking with a guy that said he was running The Low Deck 440 combo. I went back and listened to it 3 times to make sure I heard him correctly. Anybody have any idea what he was talking about??

Although I didn't see the vid, the low deck 440 has been accepted in SS but the HP factor on any 3.75 stroke engine except the 64-65 Street Wedge with that small carb will require a full cage.

[GTX JOHN]

I think the 383 or 440 in regular Superstock.
SS/IA or SS/JA for 440 and SS/KA or SS/LA with the 383
would be viable to run under the index even if
not a world beater.

[SG7874]

West Coast = Best Coast. Looking forward to a great start to the year in Phoenix this week!