[Caprimaniac]

Although Rick have a point in LSA- numbers, vacum/idle and carb size, I would say these are not important issues. Your engine will run great although a larger LS probably would make a better idle, less fuel consumption and maybe less spittering. (I run 108 or110 myself). The idle with separate runners are a little tricky, but set it quite high (1000- 1500) and no problems. Carb size are no big issue. I run 48 IDF's and rev freely to 9000 rpm (although a 347, not a 427 FE..) If wooried, move to 52/ 51 mm Inglese/ Empi whatever IDA's.

What issues I think you will have to struggle with is: Time it takes to jet & tune the carbs to utimate set-up. It i timeconsuming & sometimes frustrating. Although, if you buy a new complete kit and it is jetted for your usage (rpm, engine size, etc) there are hopes it will be a smaller task... Once it's up & running you will be a happy owner...

I will advice you to go with the IDA's as you have a little more flexibility in choosing carbs & also (may) have better tuneability. I have experience with the IDF's only, and find no "dead spots" around 3000- 3500 rpm as the IDA- owners talk about. But then again, I have no first hand experience on the IDA's.

These are my opinions.
RS