Carb single plane

**Joe O** · 02-02-2018, 09:20 PM

Peak hp may improve , but torque will suffer. In theory sounds great but unless you running a big sbc (big as in 420+) you may be disappointed at the outcome. Hence , why I never converted a super Vic. Looking for plenum volume or plenum velocity? Kind of like heads , big flow numbers mean jack at .700 if .200-.500 suffer. I mean I ran 9.34 with heads that only flowed 304cfm peak ,although that was at .500 lift . Just giving a example : of sometimes you give up one place to maybe gain just. Little somewhere else. If you did do the swap by all means give post up any new results.....

**myltwon** · 02-07-2018, 03:58 AM

What heads did you run Joe?

**Joe O** · 02-07-2018, 10:14 PM

Originally Posted by myltwon

What heads did you run Joe?

Afr 227's ( not out of box raw casting ported by my buddy EB

**sseeya** · 02-08-2018, 03:11 PM

Originally Posted by Joe O

Peak hp may improve , but torque will suffer. In theory sounds great but unless you running a big sbc (big as in 420+) you may be disappointed at the outcome. Hence , why I never converted a super Vic. Looking for plenum volume or plenum velocity? Kind of like heads , big flow numbers mean jack at .700 if .200-.500 suffer. I mean I ran 9.34 with heads that only flowed 304cfm peak ,although that was at .500 lift . Just giving a example : of sometimes you give up one place to maybe gain just. Little somewhere else. If you did do the swap by all means give post up any new results.....

Thanks for the post Joe. I haven't swapped yet, but it's wintertime here in the Northeast. I have a Holley Strip Dominator being worked on right now. I will post up results, good or bad, when springtime rolls around. The good news with intake manifold swaps, is they aren't difficult to undo if they don't work....lol

**Joe O** · 02-08-2018, 07:00 PM

Absolutely.. correct for as easy of a swap it is .. as I said I'm not saying you won't gain... your combo may want more plenum volume.. I've seen some combos lose a low and midrange torque.. depends really on your whole setup. How it would affect 1 vs. another.. quite possible you could find a golden egg.

**joelster** · 02-09-2018, 07:12 AM

You have to factor in what you are using the car for as well. If it's a drag car with a big converter say 5000+, then sacrificing some torque down low won't make a bit of difference.

**sseeya** · 02-09-2018, 10:23 AM

Originally Posted by joelster

You have to factor in what you are using the car for as well. If it's a drag car with a big converter say 5000+, then sacrificing some torque down low won't make a bit of difference.

That's exactly what it is. It's a drag race only car with a converter that stalls around 5 grand or so. On the dyno the motor made peak torque at 5100 with the Victor Jr

**Joe O** · 02-09-2018, 11:23 AM

Sorry, but can I ask why you went with Carbureted?

**Joe O** · 02-09-2018, 11:32 AM

Originally Posted by sseeya

That's exactly what it is. It's a drag race only car with a converter that stalls around 5 grand or so. On the dyno the motor made peak torque at 5100 with the Victor Jr

That's kind of what I was getting at , that and if you had a high rpm cam selection.

**sseeya** · 02-09-2018, 05:48 PM

Originally Posted by Joe O

Sorry, but can I ask why you went with Carbureted?

Main reason is because it's a race only vehicle and I have a buddy who's really good with carbs. At the time it was just easier and cheaper to just throw a carb on it and go racing. I may eventually switch to EFI, you never know.