Seriously, stick with the quaddy. The primaries are smaller on a quaddy than on most hollies and the secondaries are bigger on a quaddy than on most hollies, which means better fuel economy when youre just cruising along and more fuel when you boot it so more power. The quaddy on my vb which has a 308 black motor in it was running like a dog when i got the car, i took it to a tuner who knows quaddies like the back of his hand and now i get much better fuel economy when i drive it like a granny and more power when i give it a squirt. It cost me about $150 to get my quaddy tuned on a dyno and ive been very happy with it, definately worth getting it tuned. I spoke to my tuner about hollies and he said not to bother as you can modify quaddies to work on any 308 set up including strokers. Basically what im saying is get your quaddy tuned properly and you will be amazed with the results, i certainly was and it works out a damn sight cheaper than setting up a holley. Oh and hollies are technically illegal for the street. Hope this helps