RayGeode
My all time favorites where two vehicles and the second one was not so popular due to price, but a real fun car to drive.
The first one was a 69 Road Runner in dark metallic blue, I swapped out the factory 383 for a 440 and changed the rear axle ration to one a tad lower to gain more top end and to help keep the rear wheels from braking lose and burning out, that makes a lot of noise and smoke, but is a good way to lose a 1/4 mile run.
The second was a 70 GTX with a 440 from the factory, in Hemi Orange with a flat black hood, it had factory air which was sort of rare but nice to have in Florida, it was slightly heavier than the RR, as such the factory rear end ratio which I think was 3.52 was left alone.
After a couple of years I came across a old Chrysler something like a 57 which probably had a 392 Hemi in it, the owner wanted $15 for it and warned me it didn't have functioning brakes so I had it towed to my warehouse, upon opening the hood I something I had never seen before, a crossram dual four barrel intake manifold, I had a friend who owned a machine shop manufacture a couple of shim plates so I could mount it to a 440 and after enough work including raising the engine to install the manifold I got it to work.
It was tight under that hood changing plugs required raising the engine and removing the manifold to get a few of them.
It turned the 440 into a HP beast giving the car a lot more acceleration, I used to kid people at the track that it could pass anything other a gas station.
On a 1/4 mile run I could literally see the gas gauge dropping and because of that fuel being burned the factory fuel pump could not keep up so I installed two electric fuel pumps, normally one was left turned off and only used when doing a run.
Both vehicles had 3 speed automatics which I modified into a automatic/manual transmission with a reverse shift pattern rearward, D,2,1 became 1,2,D this prevent a all too common problems with automatics when manually shifted up from 1,2,D and because there was no lock one could accidentally shove the shifter into neutral, which at full throttle which was a good way to shove a connecting rod through the side of the engine block.