Hello Maleah,
Sounds like there is a lot in common between our cars. Here is my set-up:
Original 351W, 0.030 over
600 cfm Edelbrock Performer recalibrated w/ #1450 metering rods (after dyno)
Intake: Weiand stealth 8023
Heads: Stock 1969 cast iron Windsor, w/ 1.460 OD Valve springs and ARP rocker screw in studs
Cam: Howard Cams #CL22127510
in .528 / ex .533; Duration in 270/ ex 278; Duration @ .050: in 217 / ex 225; LSA: 108;
Lifters: Howard Cams Hyd/roller
Push rods: Trick Flow (TFS-21407750) chrome moly 5/16x7.750
Roller rocker arms: Scorpion (SCCSCP3017BL) 3/8x1.6
Hooker Comp headers with Flowmasters 2,5 inches exhaust lines (car is manual 4 spd Toploader, no PS)
This has worked real good for me, even though I can feel the stock Windsor heads are restrictive at « higher » RPM. Better heads are on my bucket list. As is, motor feels very healthy and pulls really nice and strong in the low/mid range. It’s got 15,000 miles now (was rebuilt in 2014) and I get a very decent mileage when I behave myself...
With the 3.0 stock rear end, was timed at 140 mph on some secret highway over here. Super stable and reliable steering (with some opentrackerracing parts in the front), the car rides straight like an arrow. But man, it felt like Lucifer himself was pushing on the rear bumper!
G