My own personal one was in the mid 80s. I was 17, and frankly, pretty ignorant...lol. I used a stock '68 340 that came to me in peices... I did a ring and bearing job on it (had the crank polished... that was the only machining I had done
). I threw it all together with a stock '71 Thermoquad intake and mass rebuilder rebuilt carb. Emphasis on "threw"...lol. I used a Comp 268H cam, matching springs, and hedman 1 5/8 headers (the cheap ones). Ignition was recurved stock one (courtesy of the now discontinued Crane kit...) and the Jacobs Energy Team. It passed emmissions for 3 years, and with a 4sp and 3.32s went deep in the 13s on 275/60/15 Dunlop GT Qualifiers without the NOS sytem. I'd estimate the entire build up (car was a 318 3sp on floor) came to about $2900 in '88 dollars. It was one of the cars I really learned a lot from. Made a bunch of mistakes, had a blast, but learned a lot. Especially in regard to suspension setups and traction. I doubt it made more than 375 realistic hp. But it made every bit of that and didnt waste any. The car never lost a race to a big block on the street, but I did have to spray on a couple...lol.
As a comparison.. the '70 car i built in '90 was a similar no budget deal. I parted out a '78 New Yorker I got for $550. Got the motor and trans. With no work other than Hemi MP springs, a hydraulic cam, an iron 6bbl setup, and headers. The car went 12.80s. Granted the 6bbls back then were $600 for used intake, air cleaner, and new carbs...lol, but the total investment was less than $2500 in '90 dollars.
It simply takes less cash when done smart, to get a big block faster. I respect the small block guys, but unless you leave the budget part open, you cant get a small block to run as fast as an identically spent-on big block. Yes, you need some parts, but the only thing that needs attention on a big block that doesnt on a small block, is a driveshaft. All other stuff... radiator, headers, exh, transmission, etc, will need equal attention or not need attention at all. The big block will make more power due to more cubes when built identically every time. I will say the small block car (front sway bar, disc brakes) handled and stopped much better than the '70 (small drums brakes, front sway bar). But this made no difference in 98% of my driving situations.