Quote Originally Posted by TxRanger View Post
JMO, but you have quite a mismatch. First, with all the induction hardware, why are you going to use a streetmaster? A streetmaster will really wake up an 390, but even if you do the suggested porting, it will poop out around 5000-5500rpm. They are great for velocity but have too small of runners to do any heavy breathing. Use a Edelbrock Victor instead.
The Victor would be a little much for something like that. I would run an Ed RPM over the Victor. Check out Jay Browns Dynoing of the intakes. You might be a little surprised. JMHO