So I was finally able to get my Valiant out for a real road trip for the first time since the rebuild, and really since the first time since I've owned it. We had a blast, running about 650 miles on mostly paved and some gravel highways and roads in the Oregon Cascades mountain range. Dry clear weather, mild temps. around 4000' elevation average. The motor purred like a kitten (well, a kitten with solid lifters anyway), comfortably cruising 75mph at around 3000rpm. Good mileage, no leaks at all.
I had real issues with climbing moderate to steep grades and with acceleration in general. So I'm wondering what I can do to get- what, more power, or more torque, or whatever- especially at higher rpms. I run a 225 with a Holley 390 4bbl carb, slightly larger cam, Clifford intake and headers, 2.5 single exhaust, and, yes, a manual 3-speed stock 1965 transmission. Thanks in advance!