because they suck... ok to be fair they work well on a street car, meaning not raced. If you want to go racing with them you'll need two. Not hard to tune, they just don't tune well. If you run a mild BB you'll need the 800 thunder.
I've won a fair amount of races in both Pro and N/SS with them. Doug
You ain't alone...
For carbs 'that suck', there sure are a lot of 'em out there kicking serious a$$...
apples to onions. you are running TWO and most NSS guys would LOVE to run a pair of Holleys if they could. In a SINGLE carb configuration a Holley is far better.
Well in the NMCA NSS class if you are running in the AFX 9.75 or quicker classes you are allowed to run the Holley or QuickFuel carbs. Some do and some do not as there is really not a huge difference if any. Some may gain .10 or .05 and some I do know stayed the same. So why all the added expense with a not so much improvement
