Looking back over my hot rodding history I really haven’t owned that many carbs. Most were probably on the conservative side. I’ve often wondered about stepping up a bit on my current W8 mill, but it would be an expensive experiment. It’s sure responded well to other changes we’ve done on the induction side. Ever go too big?
So….. ever over carburate?
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B3422w5
Well-Known Member
My experience is anything I have ever had went faster every time I put a bigger carb on.
Just one exception. I had a 1025rs Race Demon that I swapped out for an 1100 dominator from Patrick at pro systems. I used to work with him years ago before he opened his carb shop. He gave me 3 or 4 carbs to try. Ultimately the only one I kept was the dominator. It ran as good as the 1025rs but no better. As I had fooled around quite a bit to try the dominator , I kept it and sold the Demon. Dumbest thing I might have ever done was getting rid of that carb, it was bad ***.
So yea, almost ever time bigger has been better with that one exception.
Just one exception. I had a 1025rs Race Demon that I swapped out for an 1100 dominator from Patrick at pro systems. I used to work with him years ago before he opened his carb shop. He gave me 3 or 4 carbs to try. Ultimately the only one I kept was the dominator. It ran as good as the 1025rs but no better. As I had fooled around quite a bit to try the dominator , I kept it and sold the Demon. Dumbest thing I might have ever done was getting rid of that carb, it was bad ***.
So yea, almost ever time bigger has been better with that one exception.
RustyRatRod
Caput villa stultus
It's generally always easier to tune one that's too big than one that's too small.
That's what she said, too.
That's what she said, too.
On the Drag Strip I seldom have ever slowed down
from having a too large carb.
from having a too large carb.
RockinRobin
Well-Known Member
When I had my 414 stroker built in 2013, Patrick built me a 1050 dominator and lots of people said it was too big. It was just right for that motor and i wished that I hadn't switched to EFI. Patrick knows his stuff!
BVoelzke
Well-Known Member
All depends on your combination I run small blocks in the mid 500 h.p. range , I dyno all my motors before putting them in the car on several occasions we have taken the 750 I run off and tried something bigger like an 850 or 950 both showed little to no gain on the dyno it could just be my combo though
9secRR
Well-Known Member
i have never slowed down with a bigger carb. 950 on my 355''. wanted to try a 1050 dominator but switched to methanol.
not sure if it's the same as a carb but i run a single toilet on my 355'' at 1435 cfm and 2 toilets at 2870 cfm on the 414''
not sure if it's the same as a carb but i run a single toilet on my 355'' at 1435 cfm and 2 toilets at 2870 cfm on the 414''
Hyper_pak
Old School Chrysler Fan
Never enough cam!
I might be over carb-ed, but it keeps going faster.
I might be over carb-ed, but it keeps going faster.
jbc426
Well-Known Member
I converted my Dutra built Slant 6 to a 2bbl set-up, and then fitted a Holley 2bbl on it in place of the factory style carb. I tried a 350cfm Holley and then a 500cfm Holley.
The 500cfm version made noticeably more top end power, but lost a huge amount of mid-range torque. I ended up running the 350 cfm Holley and sacrificed the bit of power on the top end for improved street manners and drivability.
The 500cfm version made noticeably more top end power, but lost a huge amount of mid-range torque. I ended up running the 350 cfm Holley and sacrificed the bit of power on the top end for improved street manners and drivability.
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