Welcome to CHR Nic.

You said that you’d like to have a, “…fast, fun car to street”. What you’ve suggested will be neither. I love the 327 and have nothing but great memories of them built in various combinations. You have way too much cam, the Victor Jr is too much manifold, and a 750 is too much carburetor for this engine and with stock crank and rods, nitrous is a recipe for broken parts.

Was your block decked when bored? I’m curious how you came up with 11.5:1 on your CR – with the heads having 64cc combustion chamber volume, Wiseco pistons (+3.20 piston head volume) in a 4.030 bore and stock stroke you’d need a zero deck height and a head gasket less than .020 – all of which would lead to some very tight and specific tolerances in the valve train – easy for a race mechanic that adjusts as necessary between runs but tough with a solid lifter cam on the street.

If you really want a fun to drive car it needs to be dependable and start with a touch of the key. Unless you’re looking to race your Nova it may be smart to tame this build down a bit. Stay with the Vortec heads but use some good cast pistons and work for a 9.5:1 compression ratio. Use a hydraulic cam with less lift and duration in the 220 range and top with a Performer RPM and a Q-Jet or 650 Edelbrock 1406 carburetor. Some ceramic coated hookers and 40 series Flowmasters with your TH400 and a stock converter will be a lot more fun and a lot less embarrassment.

Give us a bit more information and there are many here who can help you decide what’s best for your application. Ask Techinspector nicely and he’s a wealth of information on specific builds.

Regards,
Glenn