Originally Posted by camaro_fever68
Well guys, I'm running these combos and have been for years. I know the Victor Jr is rated 3500-8000 but I will tell you it is one of the most versatile intakes ever made for the small block chevy. It'll dang near work on anything. I've run it on 283's to 406's.
Recently I changed from an RPM Air Gap to a Victor Jr on my 385cid. I lost a couple hundreths in 60ft but gained a couple MPH and my E.T. dropped. This is on a 6500 rpm engine.
I've tried the vacuum secondary carbs. They worked good for me with a tight stall. Once I started with higher stalls I found that on a dead hook they'll bog the engine. Stiffer springs kills the 60ft.
On the engine he's building, he'll never be satisfied with a vacuum secondary. If he had a tighter stall or a smaller engine, then maybe so.
His biggest problem with consistency is going to be traction. It took me a while to get my '77 Nova to pull consistent 1.46 60's.