The biggest advancements have been in tires
and shocks... yeah we make about the same power
for most of us.. but the tires and shocks have
made the cars quicker and faster... back then the
best we had for a shock was a truck shock.. hell I
was bolting on spring steel plates on my springs way
back then for better leverage.. and it worked but I
was never a big engine builder... I was always make
it light and do the best you can to make it hook...
still pretty much the same way